Seiko Cal. 5637 - 846

The 5637-846 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5637 caliber with 34j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-757214fc9efc]

Also known as: Pogue, World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1970

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