Seiko Cal. 6635 - 650

The 6635-650 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6635 caliber with 30j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-08b8c4dab0a7]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

13.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1974

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