Seiko Cal. 4546 - 815

This Hand-Winding model from 1969 features a 44mm Hardlex-Coated Steel case. Powered by the 4546 caliber with 27j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-0f9ac95e0730]

Also known as: Sumo, Crown

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1969

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