Seiko Cal. 3818 - 375

This Automatic model from 1993 features a 41mm Hardlex-Coated Steel case. Powered by the 3818 caliber with 22j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-4b56ec0befc4]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1993

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