Seiko Cal. 6146 - 663

This Spring Drive model from 1974 features a 43mm Titanium case. Powered by the 6146 caliber with 21j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-572beda315bd]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

13.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1974

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