Seiko Cal. 5645 - 977

The Seiko 5645-977 represents an important milestone in Seiko's 1983 lineup. Powered by the 5645 caliber with 29j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-051efaf37295]

Also known as: Monster

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1983

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