San Martin · Factory brand · China

San Martin SN078 44mm Bronze (PT5000)

Ref. SN078-Q · Diver

From $380
  • PT5000
  • 44 mm × 15 mm
  • Sapphire crystal
  • 300 m water resistance

Where to buy

Movement

Caliber
PT5000
Type
Automatic
Tier
Mid
Complications
Date
Frequency
28,800 bph
Power reserve
38 h
Hacking
Yes
Accuracy (factory)
-12 / +12 s/day

Case

Diameter
44 mm
Lug to lug
51 mm
Thickness
15 mm
Lug width
24 mm
Material
Bronze (CuSn8)
Hardening
—
Water resistance
300 m
Crown
Screw-down
Case back
—
Bezel
60-minute dive

Crystal & dial

Crystal
Sapphire
Shape
—
Anti-reflective
Yes (side not stated)
Lume
BGW9 (blue glow)

Bracelet

Bracelet
Not offered

Straps

Strap 1
Leather, Brown leather, 24mm tapering to 22mm, CuSn8 bronze pin buckle

Weight

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

Prices

VariantConfigurationTypePriceUSDAs ofSource
All—Street380 USD$3802026-10-24link

Variants

NameReferenceDial
Gradient black dialSN078-Qblack
Gradient blue dialSN078-Qblue
Gradient green dialSN078-Qgreen

About this entry

93% of key specs known. Missing: hardening.

The SN078-Q listing (spec text "SN0078-Q") sells one CuSn8 bronze case with a PT5000 ($380) or a Sellita SW200 ($525); this file is the PT5000 version and sn078-bronze-sw200 the other. Each movement comes with "fire pattern" gradient black (grey in the spec text), blue or green dials, with or without the San Martin logo at the same price (a "Custom Logo" option is listed but has no orderable variation). Brand specs: CuSn8 tin bronze, 44mm without crown, 51mm lug-to-lug, 15mm including crystal, 24mm lugs (inside), "double sapphire crystal + Swiss AR coating" (whether "double" means domed on both sides is not stated, so shape is left blank; AR side not stated), hand-finished hour and minute hands, BGW-9 blue lume, screwed-in crown, screw-in caseback (material not stated), leather strap 24mm tapering to 22mm with a CuSn8 bronze pin buckle (no bracelet offered), 300m, about 135g (not stated what was weighed). The 60-minute bezel scale is from the photos; bezel direction and insert are not stated. Photos show a date window at 4:30. 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