Seiko Cal. 4515 - 604

This Spring Drive model from 1972 features a 44mm Stainless Steel case. Powered by the 4515 caliber with 23j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-258582332c6e]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1972

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