Seiko Cal. 6256 - 137

The Seiko 6256-137 represents an important milestone in Seiko's 1983 lineup. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-e145196a0504]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1983

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