Seiko Cal. 5642 - 981

Seiko 5642-981

The 5642-981 is a sought-after Spring Drive piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-0d577afb5acf]

Also known as: Monster, Navigator

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
12.5mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
200m
Dial Color
Blue Sunburst
Jewels
22j
Frequency
21,600 bph
Power Reserve
48 hours
Year
1993

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