Seiko Cal. 6639 - 984

Seiko 6639-984

The 6639-984 is a sought-after Quartz piece from Seiko's golden era. It features a White dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-3088b12ed53f]

Also known as: Monster, Sumo

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
10.5mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
60m
Dial Color
White
Jewels
17j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1995

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