Seiko Cal. 6640 - 411

Seiko 6640-411

This Kinetic model from 1974 features a 39mm Stainless Steel case. Powered by the 6640 caliber with 25j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-445e380d1830]

Also known as: World Timer

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
39mm
Case Thickness
13.6mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
160m
Dial Color
Burgundy
Jewels
25j
Frequency
36,000 bph
Power Reserve
46 hours
Year
1974

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seikata-wm-445e380d1830