Seiko Cal. 0777 - 255

The 0777-255 is a sought-after Quartz piece from Seiko's golden era. Powered by the 0777 caliber with 35j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-6823c4cddb84]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

13.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1972

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