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Casio watch · Casio DURO MDV-106 (Marlin) · Duro · quartz

Casio MDV-106 strap size: 22 mm lug width

The Casio MDV-106 takes a 22 mm strap: its lug width is 22 mm, so 22 mm spring bars. The case is 44.2 mm across, 48 mm lug to lug, and 12.1 mm thick. Strap length for your wrist: the strap size tool.

Sources checked · How we source numbers
Case
44.2 mm3
2 sources disagree; show every value
  • manufacturer 44.2 mm3
  • measured 44 mm4
Lug to lug
48 mm4
Thickness
12.1 mm3
2 sources disagree; show every value
  • manufacturer 12.1 mm3
  • measured 12 mm4
Lug width
22 mm4
Casio MDV-106: size drawingCasio MDV-106, round case, top and side view to scale: case diameter 44.2 mm, lug to lug 48 mm, lug width 22 mm, thickness 12.1 mm. Bezel, dial and crown size are schematic.lug width 22Ø 44.2lug to lug 48TOPthickness 12.1SIDE
Casio MDV-106, top and side, to scaleDrawing from data, not a photo · mm

Casio MDV-106 strap size

Lug width 22 mm4measured: a 22 mm strap with 22 mm spring bars fits between the lugs. 45 other models take 22 mm.

Attachment: not published in our sources.

Find your strap length in the watch strap size tool, with the Casio MDV-106 filled in.

22 mm strap: strap diagramTwo-piece strap laid flat (22 mm strap). Lug width 22 mm. Short piece — (unknown), long piece — (unknown). Buckle, keepers and holes are schematic.short —long —lug 22lug 22strap length —22 mm strap
22 mm at the lugs; lengths depend on your wristDrawing from data, not a photo · mm

Casio MDV-106 specifications

Case diameter
44.2 mm3
2 sources disagree; show every value
  • manufacturer 44.2 mm3
  • measured 44 mm4
Lug to lug
48 mm4measured
Case length (L)
48.5 mm3Casio's L of L × W × H, measured differently from lug to lug; we never swap one for the other.
Thickness
12.1 mm3
2 sources disagree; show every value
  • manufacturer 12.1 mm3
  • measured 12 mm4
Lug width
22 mm4measured22 mm watches
Weight
92 g3
2 sources disagree; show every value
  • manufacturer 92 g3
  • measured 90.7 g4
Crystal
Mineral Glass3
2 sources disagree; show every value
  • manufacturer Mineral Glass3
  • measured hardened mineral glass4
Water resistance
200 m3
2 sources disagree; show every value
  • manufacturer 200 m3
  • measured 20Bar (200m)4
Module
Casio module 27845 · quartz
Battery
Accuracy
±20 s/month3
Years made
20113
Case code
not used by Casio: the module number (module 2784) identifies the watch

On your wrist

The verdict compares the lug to lug with the flat top of your wrist. Balanced from ~17 cm, past the edges below ~15 cm.

= 6.7 in

Balanced on a 17 cm wrist: the 48 mm lug to lug covers 88% of an estimated 54.8 mm flat top.

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 MDV-106: wrist fitCasio MDV-106 on a wrist, top view to scale. lug to lug 48 mm. Wrist 170 mm, estimated flat width 54.8 mm (circumference / 3.1). Ratio 0.88: balanced.wrist, flat topwrist flat ≈ 54.8lug to lug 48Balanced · 48 / 54.8 = 0.88estimate: wrist 170 / 3.1 = 54.8 flatcompactbalancededgeoverhang0.750.891
Casio MDV-106 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 MDV-106 at 1:1, next to a millimetre ruler.

1:1 · not calibrated: sizes are approximate
Casio MDV-106: size drawingCasio MDV-106, round case, top and side view to scale: case diameter 44.2 mm, lug to lug 48 mm, lug width 22 mm, thickness 12.1 mm. Bezel, dial and crown size are schematic.lug width 22Ø 44.2lug to lug 48TOPthickness 12.1SIDE
Drawing from data, not a photo · mm
01020304050

Module: Casio module 2784

The Casio MDV-106 runs on the Casio module 2784, a quartz movement.

Battery

Module 2784 twins

Casio's manual list puts 10 model codes on this module: same functions, same manual, often the same battery.

Codes of the Casio MDV-106 family[5]MDV-106, MDV-106B, MDV-106DD, MDV-106G

6 more codes on the same module

MTP-1215A, MTP-1302D, MTP-1302D-2A2VT, MTP-1302PD, MTP-1302PGC, MTP-1302PSC

Same size as the Casio MDV-106

The models nearest to the Casio MDV-106 in case width and lug to lug, drawn over it to scale; below, every model within 1 mm of its 48 mm.

Size comparison: Casio MDV-106, Seiko SRPD23, Seiko SRP777, Seiko SRPE33Top-view outlines to scale on one centre. A Casio MDV-106: Ø 44.2, L2L 48, lug 22, T 12.1. B Seiko SRPD23: Ø 43.8, L2L 48.4, lug 22, T 13.4 (vs A: Ø −0.4 L2L +0.4 lug 0 T +1.3). C Seiko SRP777: W 45, L2L 48, lug 22, T 14 (vs A: W +0.8 L2L 0 lug 0 T +1.9). D Seiko SRPE33: Ø 43.8, L2L 48.7, lug 22, T 12.8 (vs A: Ø −0.4 L2L +0.7 lug 0 T +0.7).B Ø 43.8D Ø 43.8A Ø 44.2C W 45A L2L 48C L2L 48B L2L 48.4D L2L 48.7A Casio MDV-106Ø 44.2 · L2L 48 · lug 22 · T 12.1B Seiko SRPD23Ø 43.8 · L2L 48.4 · lug 22 · T 13.4vs A: Ø −0.4 L2L +0.4 lug 0 T +1.3C Seiko SRP777W 45 · L2L 48 · lug 22 · T 14vs A: W +0.8 L2L 0 lug 0 T +1.9D Seiko SRPE33Ø 43.8 · L2L 48.7 · lug 22 · T 12.8vs A: Ø −0.4 L2L +0.7 lug 0 T +0.7
A Casio MDV-106 and the 3 nearest in size, on one centre, to scaleDrawing from data, not a photo · mm

Nearest in size

  1. ACasio MDV-106this watch
  2. BSeiko SRPD23W −0.4 · L2L +0.4 · T +1.3 mm
  3. CSeiko SRP777W +0.8 · L2L same · T +1.9 mm
  4. DSeiko SRPE33W −0.4 · L2L +0.7 · T +0.7 mm

Differences against A in mm: W case width, L2L lug to lug, T thickness. Nearest by width and length together, from the published sizes.

Casio MDV-106 questions

What strap size does the Casio MDV-106 take?

The Casio MDV-106 measures 22 mm between the lugs, so it takes a 22 mm strap with 22 mm spring bars. 45 other models in our base share that width.

Find the strap length for your wrist and the Casio MDV-106 in the watch strap size tool.

What battery does the Casio MDV-106 take?

The Casio MDV-106 takes SR626SW, rated about 3 years; or SR621SW, rated about 3 years.

How big is the Casio MDV-106?

The Casio MDV-106 measures 44.2 mm (44 mm measured) across, 48 mm lug to lug, 48.5 mm long (Casio's L, not lug to lug), 12.1 mm (12 mm measured) thick, 92 g (90.7 g measured).

Will the Casio MDV-106 fit a 7-inch wrist?

Balanced: the Casio MDV-106's 48 mm lug to lug takes 84% of the ~57.4 mm flat top of a 7-inch (17.8 cm) wrist. By the same estimate (circumference ÷ 3.1) it sits balanced from about 17 cm and overhangs the flat top on wrists under about 15 cm.

Where is the manual for the Casio MDV-106?

The Casio MDV-106 runs Casio module 2784, and Casio publishes the operation guide for that module as a PDF: Casio operation guide 2784. The module number is stamped on the case back.

What module is in the Casio MDV-106?

The Casio MDV-106 runs on the Casio module 2784, a quartz movement. Casio's manual list puts 10 model codes on this module, 4 of them MDV-106 codes.

More Casio watches

Sources

Documents checked · Report a wrong number

  1. 1Casio — Embedded Battery List · html · read
  2. 2CasioFanMag (fan site) — Casio DURO MDV-106 series · html · read
  3. 3Casio America — MDV106-1A | Casio Dive-Watch Style Silver Watch (product page) · html · read
  4. 4Blade Reviews (reviewer) — Casio MDV106-1A Duro Dive Watch Review · html · read
  5. 5Casio Computer Co., Ltd. — Watch manual search JSON (US locale), manual_search.support.json · json · read