Seiko Cal. 7139 - 340

Seiko 7139-340

The 7139-340 is a sought-after Quartz piece from Seiko's golden era. It features a Silver dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-128f4620c5fb]

Also known as: Navigator

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
11.9mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
130m
Dial Color
Silver
Jewels
24j
Frequency
21,600 bph
Power Reserve
72 hours
Year
1979

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