Seiko Cal. 5633 - 840

Seiko 5633-840

The 5633-840 is a sought-after Hand-Winding piece from Seiko's golden era. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-0cbef380a5ba]

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
43mm
Case Thickness
9.5mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
50m
Dial Color
Silver
Jewels
19j
Frequency
28,800 bph
Power Reserve
67 hours
Year
1968

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