Seiko Cal. 6131 - 297

The Seiko 6131-297 represents an important milestone in Seiko's 1967 lineup. Powered by the 6131 caliber with 20j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-8a7334ae9f4e]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1967

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