Seiko Cal. 7143 - 720

Seiko 7143-720

The 7143-720 is a sought-after Spring Drive piece from Seiko's golden era. It features a Champagne dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-4db4c48f86e7]

Also known as: Sumo, World Timer

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
13.6mm
Lug Width
22mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
140m
Dial Color
Champagne
Jewels
26j
Frequency
36,000 bph
Power Reserve
51 hours
Year
1974

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