Seiko Cal. 6645 - 674

Seiko 6645-674

The 6645-674 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6645 caliber with 24j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-76da2ed5be66]

Also known as: Samurai, Rally

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
10.9mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
Cream
Jewels
24j
Frequency
28,800 bph
Power Reserve
43 hours
Year
1975

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