Seiko Cal. 6637 - 625

The 6637-625 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6637 caliber with 35j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-8f983fca197f]

Also known as: Pogue, Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Burgundy

Jewels

35j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1993

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