San Martin · Factory brand · China

San Martin SN0137 38mm

Ref. SN0137-G · In production · Field

San Martin SN0137-G field watches with green and black military dials on green and black nylon straps
Photo: San Martin
From $188
  • Seiko NH35A
  • 38 mm × 11.4 mm
  • Sapphire crystal
  • 100 m water resistance

Movement

Type
Automatic
Tier
Entry
Complications
Hours, Minutes, Seconds
Frequency
21,600 bph
Power reserve
41 h
Hacking
Yes
Accuracy (factory)
-20 / +40 s/day

Case

Diameter
38 mm
Lug to lug
45 mm
Thickness
11.4 mm
Lug width
18 mm
Material
Steel (316L)
Hardening
—
Water resistance
100 m
Crown
Screw-down
Case back
Solid, screw-down
Bezel
—

Crystal & dial

Crystal
Sapphire
Shape
—
Anti-reflective
Yes (side not stated)
Lume
C3 green and BGW-9 blue, on hands and markers

Bracelet

Bracelet
Not offered

Straps

Strap 1
Nylon, High-density nylon, solid stainless steel buckle with San Martin logo

Weight

Head only
—
On bracelet
—
On strap
—
Stated weight (basis not given)
116 g

Prices

VariantConfigurationTypePriceUSDAs ofSource
Green—Street188 USD$1882026-10-24link
Black—Street188 USD$1882026-10-24link

Variants

NameReferenceDial
GreenSN0137-Gsanded green
BlackSN0137-Gsanded black

About this entry

93% of key specs known. Missing: hardening.

Brand specs: 316L, 38mm, 45mm lug-to-lug, 11.4mm (not stated whether that includes the crystal), 18mm lugs, sapphire with AR coating (side not stated), sanded black or green dial, luminous sword hands, C3 green plus BGW-9 blue lume on hands and markers (which colour goes where is not stated), screw-down crown, screw-down solid caseback, 100m, high-density nylon strap with a solid steel logo buckle, about 116g (not stated what was weighed). Sold on the strap only. The dial is a military field layout with an inner 13-24 hour ring (photos). The NH35 has a date but the dial shows no date window, so complications are time only. The store files the listing under SN030 as well as SN0137. Price $188 on 2026-10-24; the listing was in stock on 2026-10-25.

Last verified: 2026-10-25. Edit or correct this entry.

Sources