Seiko Cal. 5623 - 957

The 5623-957 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5623 caliber with 33j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-c186d269e312]

Also known as: Samurai, Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Silver

Jewels

33j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1974

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