Seiko Cal. 6388 - 557

This Solar model from 1977 features a 42mm Hardlex-Coated Steel case. Powered by the 6388 caliber with 28j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-ff08e76626b2]

Also known as: Golden Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1977

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