Seiko Cal. 6131 - 510

The Seiko 6131-510 represents an important milestone in Seiko's 1979 lineup. Powered by the 6131 caliber with 25j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-94a6d0e4048c]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

White

Jewels

25j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1979

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