Seiko Cal. 6131 - 840

The 6131-840 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6131 caliber with 27j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-7fba681218bb]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1976

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