Seiko Cal. 3812 - 607

This Spring Drive model from 1995 features a 36mm PVD Black case. Powered by the 3812 caliber with 30j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-048ccee9a612]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1995

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