Seiko Cal. 0770 - 793

The Seiko 0770-793 represents an important milestone in Seiko's 1978 lineup. Powered by the 0770 caliber with 31j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-0483588bdc0c]

Also known as: Monster, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Silver

Jewels

31j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1978

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