Seiko Cal. 5233 - 638

Seiko 5233-638

The 5233-638 is a sought-after Quartz piece from Seiko's golden era. The Fixed bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-f764ba21dff1]

Also known as: Monster, Sumo

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
36mm
Case Thickness
14.0mm
Lug Width
20mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
40m
Dial Color
White
Jewels
27j
Frequency
21,600 bph
Power Reserve
70 hours
Year
1966

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