Seiko Cal. 6257 - 150

The Seiko 6257-150 represents an important milestone in Seiko's 1980 lineup. Powered by the 6257 caliber with 29j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-d4321e1075fa]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1980

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