Seiko Cal. 4518 - 621

Seiko 4518-621

The 4518-621 is a sought-after Hand-Winding piece from Seiko's golden era. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-8aeac6acc3d2]

Also known as: UFO, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
40mm
Case Thickness
15.6mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
160m
Dial Color
Cream
Jewels
23j
Frequency
21,600 bph
Power Reserve
60 hours
Year
1970

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