Seiko Cal. 6629 - 641

The 6629-641 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6629 caliber with 33j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-d35f61a448e5]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Burgundy

Jewels

33j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1985

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