Seiko Cal. 6643 - 485

Seiko 6643-485

The 6643-485 is a sought-after Automatic piece from Seiko's golden era. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-d7df2b3c46e2]

Also known as: Golden Tuna

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
10.0mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
200m
Dial Color
Black
Jewels
35j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1992

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