Seiko Cal. 0731 - 557

Seiko 0731-557

The 0731-557 is a sought-after Quartz piece from Seiko's golden era. It features a Champagne dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-13d332df5b0b]

Also known as: Sportsmatic

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
42mm
Case Thickness
11.2mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
80m
Dial Color
Champagne
Jewels
31j
Frequency
21,600 bph
Power Reserve
48 hours
Year
1968

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