Seiko Cal. 7143 - 523

Seiko 7143-523

The 7143-523 is a sought-after Hand-Winding piece from Seiko's golden era. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-db70f4c1ac00]

Also known as: Helmet, UFO

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
40mm
Case Thickness
12.8mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
150m
Dial Color
Silver
Jewels
17j
Frequency
28,800 bph
Power Reserve
50 hours
Year
1965

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