Seiko Cal. 6131 - 528

The Seiko 6131-528 represents an important milestone in Seiko's 1982 lineup. Powered by the 6131 caliber with 26j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-4fc213f39208]

Also known as: Bullhead, Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1982

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