Seiko Cal. 7140 - 640

Seiko 7140-640

The 7140-640 is a sought-after Spring Drive piece from Seiko's golden era. It features a Burgundy dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-7c71624f8781]

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
39mm
Case Thickness
11.9mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
160m
Dial Color
Burgundy
Jewels
19j
Frequency
36,000 bph
Power Reserve
53 hours
Year
1977

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seikata-wm-7c71624f8781