Seiko Cal. 5631 - 277

The Seiko 5631-277 represents an important milestone in Seiko's 1982 lineup. Powered by the 5631 caliber with 35j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-859bfc3144b8]

Also known as: Rally, Flighty

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

11.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Champagne

Jewels

35j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1982

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