Seiko Cal. 5638 - 388

Seiko 5638-388

The 5638-388 is a sought-after Solar piece from Seiko's golden era. It features a Silver dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-6a94603f28a4]

Also known as: Bellmatic

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
8.4mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
40m
Dial Color
Silver
Jewels
19j
Frequency
36,000 bph
Power Reserve
47 hours
Year
1992

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