Seiko Cal. 6636 - 227

This Hand-Winding model from 1971 features a 41mm Stainless Steel case. Powered by the 6636 caliber with 18j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-5194af70bebb]

Also known as: Monster, Panda

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1971

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