San Martin · Factory brand · China

San Martin SN0117 41mm (ST3621)

Ref. SN0117-G-A · Pilot

Design reference: WWII B-Uhr observation watches (Type B dial)

San Martin SN0117-G steel pilot watches, ST3621 small-seconds dial (left) and NH35 centre-seconds dial (right) on brown leather straps
Photo: San Martin
From $155
  • Seagull ST3621
  • 41 mm × 13.2 mm
  • Sapphire crystal
  • 100 m water resistance

Movement

Type
Hand-wound
Tier
Mid
Complications
Small seconds
Frequency
21,600 bph
Power reserve
—
Hacking
No
Accuracy (factory)
—

Case

Diameter
41 mm
Lug to lug
50 mm
Thickness
13.2 mm
Lug width
22 mm
Material
Steel (316L)
Hardening
—
Water resistance
100 m
Crown
Push/pull
Case back
—
Bezel
—
Finishing
Circular-brushed caseback

Crystal & dial

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

Bracelet

Bracelet
Not offered

Straps

Strap 1
Leather, quick release, 22mm tapering to 18mm, 316L steel buckle with San Martin logo

Weight

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

Prices

VariantConfigurationTypePriceUSDAs ofSource
All—Street155 USD$1552026-10-24link

Variants

NameReferenceDial
Black dialSN0117-G-Ablack

About this entry

93% of key specs known. Missing: hardening.

The Seagull ST3621 hand-wound with small seconds at 6 (photos). Sold in the SN0117-G listing as "Dial A with ST3621 Movement" (spec list "SN0117-G-A/B"); the NH35 version (sn0117-nh35), quoted at 11.5mm, is a separate model. Brand specs: 316L stainless steel, 41mm, 50mm lug-to-lug, 13.2mm (not stated whether that includes the crystal), 22mm lugs, sapphire with AR coating (side not stated), black Type B flieger dial, blue-plated luminous hands, BGW-9 blue on hands and markers, push-pull onion crown, circular-brushed screw-down caseback, quick-release leather strap 22mm tapering to 18mm with a 316L steel logo buckle (no bracelet offered), 100m, about 81g (not stated what was weighed; the same figure is given for steel and bronze). The ST3621 thickness is inconsistent across the two listings: 13.2mm for the steel SN0117-G-A against 9.8mm for the bronze SN0117-Q-A, while both NH35 versions are 11.3-11.5mm; each listing's own figure is recorded, but one of them is probably a typo. inspired_by is read from the design (Type B observation-watch dial with triangle and dots at 12); the brand does not name it. The store files the listing under both its SN0117 and SN030 categories; the SN030 models are a different code. See also the bronze SN0117-Q (sn0117-bronze-nh35, sn0117-bronze-st3621). 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