Seiko Cal. 7131 - 509

Seiko 7131-509

The 7131-509 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-7efdaee112cc]

Also known as: Turtle, Shogun

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
44mm
Case Thickness
8.8mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
130m
Dial Color
Silver
Jewels
26j
Frequency
21,600 bph
Power Reserve
48 hours
Year
1991

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