Seiko Cal. 6638 - 555

Seiko 6638-555

The 6638-555 is a sought-after Automatic piece from Seiko's golden era. With its 19mm lug width and 13.2mm profile, it sits comfortably on most wrists. [seikata-wm-d6fc71d891aa]

Also known as: Shogun

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
38mm
Case Thickness
13.2mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
30m
Dial Color
White
Jewels
36j
Frequency
28,800 bph
Power Reserve
52 hours
Year
1972

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