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Casio CA-53W manual and strap size (18 mm)

Casio's operation guide for the Casio CA-53W is the PDF for module 3208: Casio operation guide 3208 (PDF) ↗. It takes a CR2016 battery. The case is 34.4 mm wide, 43.2 mm long (case length L, not lug to lug), and 8.2 mm thick.

Sources checked · How we source numbers
Width (W)
34.4 mm1
Case length (L)
43.2 mm1
not lug to lug
Thickness
8.2 mm1
Lug width
18 mm3
3 sources disagree; show every value
  • seller listing 18 mm3
  • seller listing 19 mm4
  • seller listing 17 mm5
Casio CA-53W: size drawingCasio CA-53W, rect case, top and side view to scale: case width 34.4 mm, case length (Casio L) 43.2 mm, lug width 18 mm, thickness 8.2 mm. Bezel, dial and crown size are schematic.lug width 18width 34.4case length (Casio L) 43.2TOPthickness 8.2SIDE
Casio CA-53W, top and side, to scaleDrawing from data, not a photo · mm

Module 3208 twins

Casio's manual list puts 7 model codes on this module: same functions, same manual, often the same battery.

Codes of the Casio CA-53W family[6]CA-53W, CA-53WB, CA-53WF, CA-53WPC

3 more codes on the same module

CA-506B, CA-506G, CA-56

Casio module 3208: functions, battery and manual

Module: Casio module 3208

The Casio CA-53W runs on the Casio module 3208, a digital module.

Power source
battery2
Battery life
5 years2
Accuracy
±15 s/month2

Battery

Casio CA-53W strap size

Lug width 18 mm3seller listing Sources disagree: seller listing 18 mm / seller listing 19 mm / seller listing 17 mm45: an 18 mm strap with 18 mm spring bars fits between the lugs. 8 other models take 18 mm.

Attachment: not published in our sources.

Find your strap length in the watch strap size tool, with the Casio CA-53W filled in.

18 mm strap: strap diagramTwo-piece strap laid flat (18 mm strap). Lug width 18 mm. Short piece — (unknown), long piece — (unknown). Buckle, keepers and holes are schematic.short —long —lug 18lug 18strap length —18 mm strap
18 mm at the lugs; lengths depend on your wristDrawing from data, not a photo · mm

Casio CA-53W specifications

Case width (W)
34.4 mm1
Lug to lug
not published by Casio; see case length (L)
Case length (L)
43.2 mm1Casio's L of L × W × H, measured differently from lug to lug; we never swap one for the other.
Thickness (H)
8.2 mm1
Lug width
18 mm3seller listing
3 sources disagree; show every value
  • seller listing 18 mm3
  • seller listing 19 mm4
  • seller listing 17 mm5
18 mm watches
Weight
25 g1
Crystal
not published by Casio
Water resistance
Water Resistant1
Module
Casio module 32086 · digital moduleCasio module 3208 specs
Battery
Accuracy
±15 s/month1
Years made
start not published
Case code
not used by Casio: the module number (module 3208) identifies the watch

On your wrist

The verdict compares the case length (L) with the flat top of your wrist. Balanced from ~15.5 cm, past the edges below ~13.5 cm.

= 6.7 in

Balanced on a 17 cm wrist: the 43.2 mm case length (L) covers 79% of an estimated 54.8 mm flat top.

Casio publishes no lug-to-lug for this model, so the verdict uses its case length (L). The strap or bracelet joins inside that length, which makes this a cautious estimate.

Flat top = circumference ÷ 3.1, a community convention, not a measurement of your arm. Compact ≤ 0.75 of the flat top, balanced ≤ 0.89, at the edge ≤ 1. Compare more watches in the watch size calculator.

Casio CA-53W: wrist fitCasio CA-53W on a wrist, top view to scale. case length (Casio L) 43.2 mm. Wrist 170 mm, estimated flat width 54.8 mm (circumference / 3.1). Ratio 0.79: balanced.wrist, flat topwrist flat ≈ 54.8case length (Casio L) 43.2Balanced · 43.2 / 54.8 = 0.79estimate: wrist 170 / 3.1 = 54.8 flatcompactbalancededgeoverhang0.750.891
Casio CA-53W on a 17 cm wristDrawing from data, not a photo · mm

Actual size on your screen

Calibrate once with a bank card and the drawing shows the Casio CA-53W at 1:1, next to a millimetre ruler.

1:1 · not calibrated: sizes are approximate
Casio CA-53W: size drawingCasio CA-53W, rect case, top and side view to scale: case width 34.4 mm, case length (Casio L) 43.2 mm, lug width 18 mm, thickness 8.2 mm. Bezel, dial and crown size are schematic.lug width 18width 34.4case length (Casio L) 43.2TOPthickness 8.2SIDE
Drawing from data, not a photo · mm
01020304050

Same size as the Casio CA-53W

The models nearest to the Casio CA-53W in case width and case length (L), drawn over it to scale; below, every model within 1 mm of its 43.2 mm.

Size comparison: Casio CA-53W, Casio W-96H, Casio F-201, Casio W-800HTop-view outlines to scale on one centre. A Casio CA-53W: W 34.4, L 43.2, lug 18, T 8.2. B Casio W-96H: W 35.7, L 43.9, lug —, T 12.5 (vs A: W +1.3 L +0.7 T +4.3). C Casio F-201: Ø 34, L 41, lug —, T 10.5 (vs A: W −0.4 L −2.2 T +2.3). D Casio W-800H: W 36.8, L 44.2, lug 18, T 13.4 (vs A: W +2.4 L +1 lug 0 T +5.2).C Ø 34A W 34.4B W 35.7D W 36.8C L 41A L 43.2B L 43.9D L 44.2A Casio CA-53WW 34.4 · L 43.2 · lug 18 · T 8.2B Casio W-96HW 35.7 · L 43.9 · lug — · T 12.5vs A: W +1.3 L +0.7 T +4.3C Casio F-201Ø 34 · L 41 · lug — · T 10.5vs A: W −0.4 L −2.2 T +2.3D Casio W-800HW 36.8 · L 44.2 · lug 18 · T 13.4vs A: W +2.4 L +1 lug 0 T +5.2
A Casio CA-53W and the 3 nearest in size, on one centre, to scaleDrawing from data, not a photo · mm

Nearest in size

  1. ACasio CA-53Wthis watch
  2. BCasio W-96HW +1.3 · L +0.7 · T +4.3 mm
  3. CCasio F-201W −0.4 · L −2.2 · T +2.3 mm
  4. DCasio W-800HW +2.4 · L +1 · T +5.2 mm

Differences against A in mm: W case width, L Casio case length, T thickness. Nearest by width and length together, from the published sizes.

Casio CA-53W questions

Where is the manual for the Casio CA-53W?

The Casio CA-53W runs Casio module 3208, and Casio publishes the operation guide for that module as a PDF: Casio operation guide 3208. The module number is stamped on the case back. All of the module’s models and its battery are on its page.

What strap size does the Casio CA-53W take?

The Casio CA-53W measures 18 mm (19 mm per a seller, 17 mm per a seller) between the lugs, so it takes an 18 mm strap with 18 mm spring bars. 8 other models in our base share that width.

Find the strap length for your wrist and the Casio CA-53W in the watch strap size tool.

What battery does the Casio CA-53W take?

The Casio CA-53W takes CR2016, rated about 5 years.

How big is the Casio CA-53W?

The Casio CA-53W measures 34.4 mm wide, 43.2 mm long (Casio's L, not lug to lug), 8.2 mm thick, 25 g.

Will the Casio CA-53W fit a 6-inch wrist?

Balanced: the Casio CA-53W's 43.2 mm case length (L) takes 88% of the ~49.2 mm flat top of a 6-inch (15.2 cm) wrist. By the same estimate (circumference ÷ 3.1) it sits balanced from about 15.5 cm and overhangs the flat top on wrists under about 13.5 cm.

What module is in the Casio CA-53W?

The Casio CA-53W runs on the Casio module 3208, a digital module. Casio's manual list puts 7 model codes on this module, 4 of them CA-53W codes.

More Casio watches

Sources

Documents checked · Report a wrong number

  1. 1Casio America — CA53W-1 | Black Data Bank Watch | CASIO (product page) · html · read
  2. 2Casio Computer Co., Ltd. — Operation Guide 437/438/3208 (qw3208_EN.pdf) · pdf · read
  3. 3Jamtangan.com — Casio General CA-53W-1Z Digital Databank Black Resin Band · html · read
  4. 4eBay (third-party seller listing) — Vintage Unisex 80s Casio Ca-53w Calculator Alarm Digital Watch · html · read
  5. 5eBay (third-party seller listing) — Casio Men's WR Ca-53w 3208 Calculator Data Bank Alarm Digital Wristwatch Black · html · read
  6. 6Casio Computer Co., Ltd. — Watch manual search JSON (US locale), manual_search.support.json · json · read