Seiko Cal. 5633 - 684

Seiko 5633-684

The 5633-684 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-37834e75708b]

Also known as: Tuna, Helmet

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
9.5mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
21,600 bph
Power Reserve
66 hours
Year
1989

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seikata-wm-37834e75708b