Seiko Cal. 6637 - 350

Seiko 6637-350

The 6637-350 is a sought-after Solar piece from Seiko's golden era. It features a Silver dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-d667a3a2a0ff]

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
11.4mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
60m
Dial Color
Silver
Jewels
32j
Frequency
21,600 bph
Power Reserve
66 hours
Year
1988

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