Seiko Cal. 7131 - 863

Seiko 7131-863

The 7131-863 is a sought-after Quartz piece from Seiko's golden era. It features a Silver dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-2f9eab243c48]

Also known as: Tuna

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
11.5mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
190m
Dial Color
Silver
Jewels
35j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1986

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