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Zelos watch · automatic

Zelos Aurora Field 38mm Ti Aventurine

The Zelos Aurora Field 38 Aventurine measures 38 mm across, 46 mm lug to lug, and 12 mm thick, with 20 mm lugs. It fits wrists from ~16.5 cm (flat-fit estimate).

Sources checked · How we source numbers
Case
38 mm1
Lug to lug
46 mm1
Thickness
12 mm1
Lug width
20 mm1
Zelos Aurora Field 38 Aventurine: size drawingZelos Aurora Field 38 Aventurine, round case, top and side view to scale: case diameter 38 mm, lug to lug 46 mm, lug width 20 mm, thickness 12 mm. Bezel, dial and crown size are schematic.lug width 20Ø 38lug to lug 46TOPthickness 12SIDE
Zelos Aurora Field 38 Aventurine, top and side, to scaleDrawing from data, not a photo · mm

Zelos Aurora Field 38 Aventurine specifications

Case diameter
38 mm1
Lug to lug
46 mm1
Thickness
12 mm1
Lug width
20 mm120 mm watches
Crystal
Flat Sapphire crystal with inner AR coating1
Water resistance
200 m1
Movement
Miyota 90391 · automaticMiyota 9039 specs
Battery
none: the Miyota 9039 is automatic
Years made
start not published
Case code
not in our data yet

On your wrist

The verdict compares the lug to lug with the flat top of your wrist. Balanced from ~16.5 cm, past the edges below ~14.5 cm.

= 6.7 in

Balanced on a 17 cm wrist: the 46 mm lug to lug covers 84% 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.

Zelos Aurora Field 38 Aventurine: wrist fitZelos Aurora Field 38 Aventurine on a wrist, top view to scale. lug to lug 46 mm. Wrist 170 mm, estimated flat width 54.8 mm (circumference / 3.1). Ratio 0.84: balanced.wrist, flat topwrist flat ≈ 54.8lug to lug 46Balanced · 46 / 54.8 = 0.84estimate: wrist 170 / 3.1 = 54.8 flatcompactbalancededgeoverhang0.750.891
Zelos Aurora Field 38 Aventurine 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 Zelos Aurora Field 38 Aventurine at 1:1, next to a millimetre ruler.

1:1 · not calibrated: sizes are approximate
Zelos Aurora Field 38 Aventurine: size drawingZelos Aurora Field 38 Aventurine, round case, top and side view to scale: case diameter 38 mm, lug to lug 46 mm, lug width 20 mm, thickness 12 mm. Bezel, dial and crown size are schematic.lug width 20Ø 38lug to lug 46TOPthickness 12SIDE
Drawing from data, not a photo · mm
01020304050

Zelos Aurora Field 38 Aventurine strap size

Lug width 20 mm1: a 20 mm strap with 20 mm spring bars fits between the lugs. 62 other models take 20 mm.

Attachment: not published in our sources.

Find your strap length in the watch strap size tool, with the Zelos Aurora Field 38 Aventurine filled in.

20 mm strap: strap diagramTwo-piece strap laid flat (20 mm strap). Lug width 20 mm. Short piece — (unknown), long piece — (unknown). Buckle, keepers and holes are schematic.short —long —lug 20lug 20strap length —20 mm strap
20 mm at the lugs; lengths depend on your wristDrawing from data, not a photo · mm

Movement: Miyota 9039

The Zelos Aurora Field 38 Aventurine runs on the Miyota 9039, an automatic movement.

Beat rate
28,800 bph2
Power reserve
42 h2
Jewels
242
Accuracy
−10 to +30 s/day2
Hacking seconds
Yes2
Hand winding
Yes2

Battery

none: the Miyota 9039 is automatic

A mechanical watch has no cell to replace; it needs a service instead.

Same size as the Zelos Aurora Field 38 Aventurine

The models nearest to the Zelos Aurora Field 38 Aventurine in case width and lug to lug, drawn over it to scale; below, every model within 1 mm of its 46 mm.

Size comparison: Zelos Aurora Field 38 Aventurine, Seiko SPB241, Seiko SPB245, Seiko SPB249Top-view outlines to scale on one centre. A Zelos Aurora Field 38 Aventurine: Ø 38, L2L 46, lug 20, T 12. B Seiko SPB241: Ø 38, L2L 46.2, lug 19, T 12.9 (vs A: Ø 0 L2L +0.2 lug −1 T +0.9). C Seiko SPB245: Ø 38, L2L 46.2, lug 19, T 12.9 (vs A: Ø 0 L2L +0.2 lug −1 T +0.9). D Seiko SPB249: Ø 38, L2L 46.2, lug 19, T 12.9 (vs A: Ø 0 L2L +0.2 lug −1 T +0.9).A Ø 38B Ø 38C Ø 38D Ø 38A L2L 46B L2L 46.2C L2L 46.2D L2L 46.2A Zelos Aurora Field 38 AventurineØ 38 · L2L 46 · lug 20 · T 12B Seiko SPB241Ø 38 · L2L 46.2 · lug 19 · T 12.9vs A: Ø 0 L2L +0.2 lug −1 T +0.9C Seiko SPB245Ø 38 · L2L 46.2 · lug 19 · T 12.9vs A: Ø 0 L2L +0.2 lug −1 T +0.9D Seiko SPB249Ø 38 · L2L 46.2 · lug 19 · T 12.9vs A: Ø 0 L2L +0.2 lug −1 T +0.9
A Zelos Aurora Field 38 Aventurine and the 3 nearest in size, on one centre, to scaleDrawing from data, not a photo · mm

Nearest in size

  1. AZelos Aurora Field 38 Aventurinethis watch
  2. BSeiko SPB241W same · L2L +0.2 · T +0.9 mm
  3. CSeiko SPB245W same · L2L +0.2 · T +0.9 mm
  4. DSeiko SPB249W same · L2L +0.2 · T +0.9 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.

Zelos Aurora Field 38 Aventurine questions

How big is the Zelos Aurora Field 38 Aventurine?

The Zelos Aurora Field 38 Aventurine measures 38 mm across, 46 mm lug to lug, 12 mm thick.

Will the Zelos Aurora Field 38 Aventurine fit a 6.5-inch wrist?

Balanced: the Zelos Aurora Field 38 Aventurine's 46 mm lug to lug takes 86% of the ~53.3 mm flat top of a 6.5-inch (16.5 cm) wrist. By the same estimate (circumference ÷ 3.1) it sits balanced from about 16.5 cm and overhangs the flat top on wrists under about 14.5 cm.

Does the Zelos Aurora Field 38 Aventurine need a battery?

No. The Zelos Aurora Field 38 Aventurine has no cell to replace: a wound mainspring drives its automatic Miyota 9039.

What movement is in the Zelos Aurora Field 38 Aventurine?

The Zelos Aurora Field 38 Aventurine runs on the Miyota 9039, an automatic movement.

What strap size does the Zelos Aurora Field 38 Aventurine take?

The Zelos Aurora Field 38 Aventurine measures 20 mm between the lugs, so it takes a 20 mm strap with 20 mm spring bars. 62 other models in our base share that width.

Find the strap length for your wrist and the Zelos Aurora Field 38 Aventurine in the watch strap size tool.

More Zelos watches

Sources

Documents checked · Report a wrong number

  1. 1Zelos Watches — Aurora Field 38mm Ti Aventurine product page · html · read
  2. 2Citizen Watch Co., Ltd. (MIYOTA) — MIYOTA movement 9039 product page · html · read
  3. 3Citizen Watch Co., Ltd. (MIYOTA) — MIYOTA movement overview (catalogue table, 2 pages) · pdf · read