Seiko Cal. 0770 - 613

The Seiko 0770-613 represents an important milestone in Seiko's 1980 lineup. Powered by the 0770 caliber with 23j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-72f3161dfcda]

Also known as: Monster, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1980

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