Seiko Cal. 6644 - 456

Seiko 6644-456

The 6644-456 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6644 caliber with 20j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-067c061826bc]

Also known as: Tuna, Arnie

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
15.6mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
100m
Dial Color
Cream
Jewels
20j
Frequency
21,600 bph
Power Reserve
61 hours
Year
1966

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seikata-wm-067c061826bc