BewristHomage watches, measured
San Martin SN0109 GMT, SN0109 black dial, red/blue GMT bezel
SN0109 GMT, SN0109 black dial, red/blue GMT bezel

San Martin SN0109 GMT

A homage of the Tudor Black Bay

Price not listed yet

Size
39 mm across, the same width as the Tudor
Movement
NH34, automatic. Sapphire crystal
Look
Not compared mark by mark yet
Compare with another homage

Against the Tudor

Tudor Black Bay M79030B-000139Tudor Black Bay M79030B-0001
San Martin SN0109 GMT39San Martin SN0109 GMT

Photos use listed case widths and automatic case-edge readings. The readings have not been manually audited. Photo proportions stay unchanged. Perspective and lug length can differ.

39 mm, the same width as the Tudor
Tudor Black Bay M79030B-0001 photo: M79030B-0001. San Martin SN0109 GMT photo: SN0109 black dial, red/blue GMT bezel.

The Tudor drawn is the M79030B-0001.

  • Snowflake hour hand

    Not compared yet.

  • Triangle at 12

    Not compared yet.

  • Round hour plots

    Not compared yet.

  • Bars at 3, 6 and 9

    Not compared yet.

  • Coin-edge dive bezel

    Not compared yet.

  • Large crown

    Not compared yet.

Tudor left, SN0109 GMT right.

Everything else

Every spec15 listed, each with where it came from

Every spec we have

From sellers. Each figure links to where it was found.

Case width
39 mmsanmartin.watch, 2 Oct
Lug to lug
48.5 mmsanmartin.watch, 2 Oct
Thickness
13 mmsanmartin.watch, 2 Oct
Lug width
20 mmsanmartin.watch, 2 Oct
Movement type
Automatic GMTsanmartin.watch, 2 Oct
Movement calibre
NH34sanmartin.watch, 2 Oct
Case material
316L stainless steelsanmartin.watch, 2 Oct
Crystal
Domed sapphire, internal ARsanmartin.watch, 2 Oct
Water resistance
100 msanmartin.watch, 2 Oct
Bezel
Aluminium blue/red 24-hour, 24-click bidirectionalsanmartin.watch, 2 Oct
Clasp
On-the-fly adjustable folding safetysanmartin.watch, 2 Oct
Functions
Hours, minutes, seconds, GMT, datesanmartin.watch, 2 Oct
Lume
BGW9 bluesanmartin.watch, 2 Oct
Warranty
2 yearssanmartin.watch, 2 Oct
Weight
148 gsanmartin.watch, 2 Oct
The movementNH34, in plain words

The movement, in plain words

San Martin lists the NH34 for the SN0109 GMT. It is an automatic, so wearing it winds it.

On your wrist39 mm across, 13 mm thick, on a wrist your size

How it sits on your wrist

Set your wrist circumference to compare the 39 mm case with a schematic wrist. The ellipse estimates wrist width and shape. It cannot predict your fit.

17.0 cm6.7 in around

This wrist model is about 56 mm across. The case spans 70% of that estimated width. The lug span ends 3.8 mm inside each model edge.

Wrap a strip of paper round your wrist just below the bone, mark where it meets and measure it.

39 mm case 48.5 mm lug to lug Wrist model about 56 mm across
Schematic section, with a 10 mm grid. The ellipse approximates wrist anatomy from circumference. Your wrist shape, lug curve and fit will differ.

How tall it stands

13 39 wide 48.5 lug to lug

The side view uses listed dimensions. Case shape and lug curve are schematic.

Side views to scale against other Tudor Black Bay homages.

  1. Cronos L602512.1 mm
  2. Cronos L602612.1 mm
  3. San Martin SN0109 GMT13 mm
  4. Aquatico Bronze Sea Star14 mm
  5. Cronos L601714.05 mm
  6. Cronos L602214.2 mm
  7. Cronos L602114.45 mm
More from San Martin4 more on Bewrist

Every San Martin watch

Beside other Tudor Black Bay homagesThis watch and 5 more of its look, to scale

Drawn to scale by listed case width.

All 20 on the look page

SourcesThe page this record was built from