Seiko Cal. 5646 - 522

The 5646-522 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5646 caliber with 31j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-88ec2322622d]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1992

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