Seiko Cal. 6645 - 901

Seiko 6645-901

This Spring Drive model from 1994 features a 40mm Gold-Plated case. Powered by the 6645 caliber with 19j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-fc8b4d2a8d68]

Also known as: Monster, Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
40mm
Case Thickness
8.5mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
90m
Dial Color
Champagne
Jewels
19j
Frequency
28,800 bph
Power Reserve
69 hours
Year
1994

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