Seiko Cal. 6693 - 646

Seiko 6693-646

This Hand-Winding model from 1973 features a 34mm Stainless Steel case. It features a Silver dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-6c900940b7d6]

Also known as: UFO, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
13.3mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Silver
Jewels
36j
Frequency
28,800 bph
Power Reserve
54 hours
Year
1973

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seikata-wm-6c900940b7d6