Seiko Cal. 6644 - 652

Seiko 6644-652

This Solar model from 1972 features a 40mm Two-Tone case. Powered by the 6644 caliber with 18j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-256563818ce8]

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
40mm
Case Thickness
15.7mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
70m
Dial Color
Burgundy
Jewels
18j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1972

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seikata-wm-256563818ce8