Seiko Cal. 6645 - 445

Seiko 6645-445

The Seiko 6645-445 represents an important milestone in Seiko's 1973 lineup. Powered by the 6645 caliber with 30j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-ba29ec3235d7]

Also known as: Rally, Emperor

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
12.7mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
90m
Dial Color
Navy
Jewels
30j
Frequency
28,800 bph
Power Reserve
44 hours
Year
1973

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