San Martin · Factory brand · China
San Martin SN027 43mm (Seagull ST2100)
- Seagull ST2100
- 43 mm × 12.5 mm
- Sapphire crystal
- 200 m water resistance
Where to buy
- San MartinWorldwide
Movement
- Caliber
- Seagull ST2100
- Type
- Automatic
- Tier
- Mid
- Complications
- Hours, Minutes, Seconds
- Frequency
- 28,800 bph
- Power reserve
- 41 h
- Hacking
- Yes
- Accuracy (factory)
- —
Case
- Diameter
- 43 mm
- Lug to lug
- 51 mm
- Thickness
- 12.5 mm
- Lug width
- 22 mm
- Material
- Titanium (Grade 5)
- Hardening
- —
- Water resistance
- 200 m
- Crown
- Screw-down
- Case back
- Solid, screw-down
- Bezel
- Unidirectional, 60-minute dive, lumed
Crystal & dial
- Crystal
- Sapphire
- Shape
- —
- Anti-reflective
- Yes (side not stated)
- Lume
- BGW-9 (blue)
Bracelet
- Bracelet
- —
Straps
- Strap 1
- Leather, Beige stitching, titanium buckle
Weight
- Head only
- —
- On bracelet
- —
- On strap
- —
- Stated weight (basis not given)
- 86 g
Prices
| Variant | Configuration | Type | Price | USD | As of | Source |
|---|---|---|---|---|---|---|
| All | — | Street | 350 USD | $350 | 2026-10-24 | link |
Variants
| Name | Reference | Dial |
|---|---|---|
| Grey dial | SN027-T3 | grey |
About this entry
87% of key specs known. Missing: hardening, bracelet offered.
The SN027-T3 listing (written "SN0027-T3" in its spec list; the title calls it a dress watch, the store files it under Diver) uses the same Grade 5 titanium case as the SN027-T1 and T2 with a Seagull ST2100. Brand specs: Grade 5 titanium, 43mm, 51mm lug-to-lug, 12.5mm (not stated whether that includes the crystal; the T2 listing gives the same figure including crystal), 22mm lugs, sapphire with AR coating (side not stated), unidirectional Grade 5 titanium bezel with luminous markers (clicks not stated), grey dial, BGW-9 lume glowing blue on hands and markers, screw-locked crown with 3D "S" logo, titanium screw-down caseback, leather strap with beige stitching and titanium buckle, 200m, about 86g (not stated what was weighed), no custom logo. The listing also carries a "Stainless Steel Bracelet / Leather Strap" attribute but has no orderable variations and shows only the leather strap, so the bracelet is left unknown. The movement shows day and date but the photos show no windows, so complications are time only. Single product at $350, out of stock on 2026-10-24.
Last verified: 2026-10-24. Edit or correct this entry.
Sources
- San Martin official store, SN027-T3 (Seagull ST2100) accessed 2026-10-24


