Seiko Cal. 6644 - 233

Seiko 6644-233

The 6644-233 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6644 caliber with 36j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-d68b70ddb19a]

Also known as: Tuna, Rally

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
43mm
Case Thickness
14.9mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
White
Jewels
36j
Frequency
36,000 bph
Power Reserve
42 hours
Year
1969

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