Seiko Cal. 5631 - 655

The Seiko 5631-655 represents an important milestone in Seiko's 1981 lineup. Powered by the 5631 caliber with 34j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-9e6734f888ab]

Also known as: Pogue, Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

White

Jewels

34j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1981

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