Seiko Cal. 7136 - 991

Seiko 7136-991

The 7136-991 is a sought-after Quartz piece from Seiko's golden era. With its 21mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-fcfcf6c48743]

Also known as: Tuna, Helmet

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
46mm
Case Thickness
12.1mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
80m
Dial Color
Silver
Jewels
27j
Frequency
28,800 bph
Power Reserve
62 hours
Year
1986

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