Seiko Cal. 6638 - 887

Seiko 6638-887

The 6638-887 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Cream dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-1f2a0207ba1b]

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
36mm
Case Thickness
13.2mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Cream
Jewels
32j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1980

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