Seiko Cal. 6631 - 457

This Quartz model from 1977 features a 42mm Titanium case. Powered by the 6631 caliber with 27j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-5e21e18616dc]

Also known as: Emperor, Flighty

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

42mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Burgundy

Jewels

27j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1977

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