Seiko Cal. 0790 - 777

The Seiko 0790-777 represents an important milestone in Seiko's 1987 lineup. Powered by the 0790 caliber with 27j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-7a54c3e3f72d]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

9.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1987

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