San Martin · Factory brand · China
San Martin SN0136 39mm
- Seiko NH34A
- 39 mm × 13.5 mm
- Sapphire crystal
- 200 m water resistance
Where to buy
- San MartinWorldwide
Movement
- Caliber
- Seiko NH34A
- Type
- Automatic
- Tier
- Entry
- Complications
- Date, GMT
- Frequency
- 21,600 bph
- Power reserve
- 41 h
- Hacking
- Yes
- Accuracy (factory)
- -20 / +40 s/day
Case
- Diameter
- 39 mm
- Lug to lug
- 47.5 mm
- Thickness
- 13.5 mm
- Lug width
- 20 mm
- Material
- Steel (316L)
- Hardening
- —
- Water resistance
- 200 m
- Crown
- Screw-down
- Case back
- —
- Bezel
- Unidirectional, 120 clicks, 60-minute dive, ceramic insert
Crystal & dial
- Crystal
- Sapphire
- Shape
- —
- Anti-reflective
- Yes (side not stated)
- Lume
- BGW-X1 blue and C3 green, on hands and markers
Bracelet & clasp
- Style
- H-link
- Links per row
- —
- Solid end links
- —
- Solid links
- Yes
- Link attachment
- —
- Taper
- 20 → 18 mm
- Quick release
- —
- Half links
- —
- Clasp
- —
- Micro-adjust
- On-the-fly, "Fly Adjustable Clasp"
- Diver extension
- —
Straps
- Strap 1
- Nylon, 260mm long, 316L stainless steel buckle
Weight
- Head only
- —
- On bracelet
- 160.5 g
- On strap
- 85.3 g
Prices
| Variant | Configuration | Type | Price | USD | As of | Source |
|---|---|---|---|---|---|---|
| Matte Black | Nylon strap | Street | 328 USD | $328 | 2026-10-24 | link |
| Matte Black | Stainless steel bracelet | Street | 380 USD | $380 | 2026-10-24 | link |
| Sunray Blue | Nylon strap | Street | 328 USD | $328 | 2026-10-24 | link |
| Sunray Blue | Stainless steel bracelet | Street | 380 USD | $380 | 2026-10-24 | link |
| Sunray Green | Nylon strap | Street | 328 USD | $328 | 2026-10-24 | link |
| Sunray Green | Stainless steel bracelet | Street | 380 USD | $380 | 2026-10-24 | link |
| Dark Brown | Nylon strap | Street | 328 USD | $328 | 2026-10-24 | link |
| Dark Brown | Stainless steel bracelet | Street | 380 USD | $380 | 2026-10-24 | link |
Variants
| Name | Reference | Dial |
|---|---|---|
| Matte Black | SN0136-G-GMT | matte black |
| Sunray Blue | SN0136-G-GMT | sunray blue |
| Sunray Green | SN0136-G-GMT | sunray green |
| Dark Brown | SN0136-G-GMT | sunray dark brown |
About this entry
79% of key specs known. Missing: hardening, bracelet links, end links, link attachment.
Brand specs (spec list writes the model "SN0136-G GMT"): 316L, 39mm (40.5mm with the crown), 47.5mm lug-to-lug, 13.5mm (not stated whether that includes the crystal), 20mm lugs, sapphire with AR coating (side not stated), 120-click unidirectional ceramic bezel (60-minute scale from photos), sunray green, blue or dark brown, or matte black dial (called "Enamel Black" in the spec list), date at 3, "GS Crafts" four-hand GMT with the 24-hour scale on the dial's chapter ring (photos), BGW-X1 blue plus C3 green lume on hands and markers, screw-down crown, brushed screw-down caseback, 200m. Offered on a solid 316L "H Links" bracelet, 20mm tapering to 18mm and 180mm long, with the "New Fly Adjustable Clasp" (on-the-fly; positions and range not stated), or on a 260mm nylon strap with a 316L buckle. Weight "85.3g/160.5g", read as nylon strap/bracelet. Prices on 2026-10-24: $328 on the strap, $380 on the bracelet. The store files the listing under SN0116 as well as SN0136. The listing was in stock on 2026-10-25.
Last verified: 2026-10-25. Edit or correct this entry.
Sources
- San Martin official store, SN0136-G-GMT 39mm NH34 diver GMT accessed 2026-10-25