Seiko Cal. 6660 - 921

Seiko 6660-921

This Hand-Winding model from 1971 features a 36mm Hardlex-Coated Steel case. It features a Black dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-8c3b4d66281d]

Also known as: Turtle, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
14.6mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
80m
Dial Color
Black
Jewels
22j
Frequency
28,800 bph
Power Reserve
54 hours
Year
1971

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