Seiko Cal. 3813 - 546

This Hand-Winding model from 1978 features a 46mm Hardlex-Coated Steel case. Powered by the 3813 caliber with 34j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-56c4bee602a1]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

White

Jewels

34j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1978

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