Seiko Cal. 6641 - 464

This Hand-Winding model from 1991 features a 39mm Hardlex-Coated Steel case. Powered by the 6641 caliber with 25j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-05429c4ffaa2]

Also known as: Bullhead, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Burgundy

Jewels

25j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1991

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