Seiko Cal. 7131 - 318

Seiko 7131-318

The 7131-318 is a sought-after Solar piece from Seiko's golden era. Powered by the 7131 caliber with 31j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-fb38a1875dcc]

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
35mm
Case Thickness
11.2mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Champagne
Jewels
31j
Frequency
36,000 bph
Power Reserve
45 hours
Year
1989

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