Seiko Cal. 6155 - 931

The Seiko 6155-931 represents an important milestone in Seiko's 1980 lineup. Powered by the 6155 caliber with 31j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-5e9c4f07a439]

Also known as: Tuna, Rally

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Burgundy

Jewels

31j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1980

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