Seiko Cal. 5646 - 720

Seiko 5646-720

This Hand-Winding model from 1987 features a 39mm Hardlex-Coated Steel case. Powered by the 5646 caliber with 24j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-8dd91a59d7da]

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
8.1mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
Champagne
Jewels
24j
Frequency
21,600 bph
Power Reserve
61 hours
Year
1987

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seikata-wm-8dd91a59d7da