Seiko Cal. 5287 - 637

Seiko 5287-637

The 5287-637 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-df5732069ede]

Also known as: Rally, Emperor

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
11.4mm
Lug Width
20mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
80m
Dial Color
Green
Jewels
18j
Frequency
21,600 bph
Power Reserve
58 hours
Year
1980

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