Watchdives & San Martin 6200 SN004 BB58 Diver Vintage Watch Limited Edition

Promotion Time(1 Nov to 12 Nov 2022 ):

Brand: San martin
Model: SN004 Limited edtion
Movement: NH35 [automatic mechanical movement]
Case material: 316L Stainless Steel
Caseback: Screw-in solid caseback
Bezel: 90 click Ceramic Bezel Insert
Watch mirror: Sapphire Crystal Glass, AR Coating
Dial Color: Black or blue
Luminous:
Black dial: Retro Luminous Effect SLN C3 Green Light, Hands and Markers
Blue dial: Swiss BGW9-blue light, Hands and Markers
Crown:Screw-down Crown, Hex logo for new production batch.
Case Back: Screw-down Case Back, Brushed Process
Strap: 316L Solid Stainless Steel Oyster Bracelet
Clasp: Folding Clasp With Safety ,With San Martin Hexagon Logo
Water Resistant: 20Bar=200 meters
Weight: about 140g
Watch Dimension:
Case diameter: 38mm( without crown)
Lug length: 46mm (upper lug to lower lug)
Case thickness: 13mm (including mirror)
Lug width:20mm

[prohero]

What makes this limited? It looks like the other models. Genuinely curious.