Seiko Cal. 6636 - 383

The 6636-383 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6636 caliber with 36j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-ff591abb00bc]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Burgundy

Jewels

36j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1972

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