Seiko Cal. 6657 - 151

The Seiko 6657-151 represents an important milestone in Seiko's 1976 lineup. Powered by the 6657 caliber with 36j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-446e6c3d1531]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1976

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