Seiko Cal. 3812 - 505

This Automatic model from 1987 features a 37mm Stainless Steel case. Powered by the 3812 caliber with 24j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-aa4aab213f0a]

Also known as: Sumo, Silverwave

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Burgundy

Jewels

24j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1987

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