Seiko Cal. 6642 - 616

Seiko 6642-616

The 6642-616 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-d73b9a698488]

Also known as: Baby Tuna

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
9.4mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
60m
Dial Color
Green
Jewels
22j
Frequency
28,800 bph
Power Reserve
72 hours
Year
1965

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