Seiko Cal. 5621 - 638

Seiko 5621-638

The 5621-638 is a sought-after Automatic piece from Seiko's golden era. The Fixed bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-14ae63553c8b]

Also known as: Baby Tuna

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
46mm
Case Thickness
14.1mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
100m
Dial Color
Silver
Jewels
18j
Frequency
36,000 bph
Power Reserve
64 hours
Year
1970

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