Seiko Cal. 6657 - 833

Seiko 6657-833

This Hand-Winding model from 1968 features a 45mm PVD Black case. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-53e504bff1d6]

Also known as: Helmet

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
45mm
Case Thickness
8.2mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
50m
Dial Color
Burgundy
Jewels
21j
Frequency
21,600 bph
Power Reserve
54 hours
Year
1968

Related Models

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