Seiko Cal. 4438 - 633

Seiko 4438-633

The 4438-633 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-75a9f2c9c3c2]

Also known as: Emperor

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
41mm
Case Thickness
13.8mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
60m
Dial Color
Green
Jewels
36j
Frequency
36,000 bph
Power Reserve
62 hours
Year
1965

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