Seiko Cal. 4453 - 977

This Spring Drive model from 1983 features a 41mm Two-Tone case. Powered by the 4453 caliber with 25j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-7a69c7490ae5]

Also known as: Turtle, Monster

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1983

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