Seiko Cal. 5630 - 334

The 5630-334 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5630 caliber with 32j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-f915af9e807e]

Also known as: Helmet, Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

32j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1972

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