San Martin · Factory brand · China
San Martin SN045 40.5mm
- Seiko NH35A
- 40.5 mm × 13.5 mm
- Sapphire crystal
- 200 m water resistance
Where to buy
- San Martin (Matte black dial)Worldwide
- San Martin (C1 orange dial)Worldwide
Movement
- Caliber
- Seiko NH35A
- Type
- Automatic
- Tier
- Entry
- Complications
- Date
- Frequency
- 21,600 bph
- Power reserve
- 41 h
- Hacking
- Yes
- Accuracy (factory)
- -20 / +40 s/day
Case
- Diameter
- 40.5 mm
- Lug to lug
- 43 mm
- Thickness
- 13.5 mm
- Lug width
- 20 mm
- Material
- Steel (316L)
- Hardening
- —
- Water resistance
- 200 m
- Crown
- Screw-down
- Case back
- Solid, screw-down
- Bezel
- 60-minute dive, ceramic insert
Crystal & dial
- Crystal
- Sapphire
- Shape
- —
- Anti-reflective
- Yes (side not stated)
- Lume
- C3 (green) on hands and markers
Bracelet & clasp
- Style
- —
- Links per row
- —
- Solid end links
- —
- Solid links
- —
- Link attachment
- —
- Taper
- —
- Quick release
- —
- Half links
- —
- Clasp
- —
- Micro-adjust
- —
- Diver extension
- —
Straps
- Strap 1
- FKM rubber, Fluororubber strap, 20mm tapering to 18mm, 316L steel buckle
Weight
- Head only
- —
- On bracelet
- —
- On strap
- —
- Stated weight (basis not given)
- 115 g
Prices
Variants
| Name | Reference | Dial |
|---|---|---|
| Matte black dial | SN045-G | black |
| C1 orange dial | SN045-C1 | orange |
About this entry
74% of key specs known. Missing: hardening, bracelet links, end links, link attachment, clasp micro-adjust.
Two listings of one case: the SN045-G (matte black dial with applied markers, with or without the San Martin logo at the same price) and the later SN045-C1 (orange dial), each $235 on rubber or $258 on the steel bracelet. Brand specs, as quoted on both: NH35 ("Time Module NH35A" on the G), 316L, 40.5mm without crown, 43mm lug-to-lug, 13.5mm including crystal (13.4mm on the C1 listing; recorded as 13.5mm), 20mm lugs, sapphire with AR coating (side not stated), ceramic bezel insert (60-minute scale from photos; direction not stated), C3 lume, screw-in crown and screw-in solid caseback, each with a shark logo, fluororubber strap 20mm tapering to 18mm or a stainless steel bracelet, 316L clasp (the C1 listing says "with microadjustments", type not stated), 200m. The 43mm lug-to-lug is short for a 40.5mm case but is what both listings quote; the photos show a cushion-shaped case with short lugs. Weight about 115g (G listing; not stated on strap or bracelet). The bracelet's construction is not described. Photos show a date at 3. Every variation showed "Out of stock" on 2026-10-25, so production status is unknown.
Last verified: 2026-10-25. Edit or correct this entry.
Sources
- San Martin official store, SN045-G diver with NH35A accessed 2026-10-25
- San Martin official store, SN045-C1 40.5mm orange-dial diver with NH35 accessed 2026-10-25