Seiko Cal. 6678 - 991

Seiko 6678-991

The 6678-991 is a sought-after Quartz piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-27bcb5f6cb13]

Also known as: Turtle, Arnie

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
8.3mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
170m
Dial Color
Green
Jewels
23j
Frequency
36,000 bph
Power Reserve
56 hours
Year
1967

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