Seiko Cal. 6631 - 268

This Hand-Winding model from 1997 features a 46mm Hardlex-Coated Steel case. Powered by the 6631 caliber with 33j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-869880d28c8f]

Also known as: Monster, Navigator

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Burgundy

Jewels

33j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1997

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