Seiko Cal. 6621 - 717

Seiko 6621-717

This Hand-Winding model from 1971 features a 44mm Titanium case. Powered by the 6621 caliber with 22j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-a39016dddb28]

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
44mm
Case Thickness
13.2mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
Green
Jewels
22j
Frequency
28,800 bph
Power Reserve
45 hours
Year
1971

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seikata-wm-a39016dddb28