Seiko Cal. 6645 - 803

The 6645-803 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6645 caliber with 32j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-976cc099e2a3]

Also known as: Crown, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1980

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