Seiko Cal. 6638 - 333

Seiko 6638-333

The 6638-333 is a sought-after Quartz piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-90d889d6e3a3]

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
45mm
Case Thickness
11.9mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Blue Sunburst
Jewels
29j
Frequency
28,800 bph
Power Reserve
43 hours
Year
1980

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