Seiko Cal. 3815 - 757

This Automatic model from 1986 features a 39mm PVD Black case. Powered by the 3815 caliber with 22j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-cf2d56207690]

Also known as: Sumo, Silverwave

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1986

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