Seiko Cal. 5641 - 645

Seiko 5641-645

The 5641-645 is a sought-after Kinetic piece from Seiko's golden era. It features a Silver dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-96d0710ce8e7]

Also known as: Sumo, Arnie

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
42mm
Case Thickness
11.6mm
Lug Width
21mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
100m
Dial Color
Silver
Jewels
36j
Frequency
28,800 bph
Power Reserve
47 hours
Year
1966

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