Seiko Cal. 6633 - 885

The 6633-885 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6633 caliber with 27j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-ec6cf3e876e5]

Also known as: Helmet, Crown

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Burgundy

Jewels

27j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1970

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