Seiko Cal. 0770 - 153

The Seiko 0770-153 represents an important milestone in Seiko's 1976 lineup. Powered by the 0770 caliber with 34j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-eba5ba827859]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Navy

Jewels

34j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1976

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