Seiko Cal. 6647 - 739

Seiko 6647-739

The 6647-739 is a sought-after Quartz piece from Seiko's golden era. It features a Burgundy dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-742a7e882f6b]

Also known as: Monster

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
40mm
Case Thickness
9.3mm
Lug Width
20mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
110m
Dial Color
Burgundy
Jewels
27j
Frequency
28,800 bph
Power Reserve
36 hours
Year
1970

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