Seiko Cal. 4561 - 974

This Spring Drive model from 1973 features a 37mm Two-Tone case. Powered by the 4561 caliber with 20j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-b1efc6c93104]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1973

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