Seiko Cal. 6643 - 869

Seiko 6643-869

The 6643-869 is a sought-after Quartz piece from Seiko's golden era. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-fe51e1ee6332]

Also known as: Tuna, Goldfeather

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
36mm
Case Thickness
11.7mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
100m
Dial Color
Green
Jewels
22j
Frequency
21,600 bph
Power Reserve
42 hours
Year
1965

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