Seiko Cal. 6638 - 473

Seiko 6638-473

The 6638-473 is a sought-after Hand-Winding piece from Seiko's golden era. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-fc72be48cd03]

Also known as: UFO, Flighty

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
14.8mm
Lug Width
22mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
Green
Jewels
20j
Frequency
21,600 bph
Power Reserve
52 hours
Year
1974

Related Models

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