Seiko Cal. 7177 - 721

Seiko 7177-721

The 7177-721 is a sought-after Quartz piece from Seiko's golden era. With its 21mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-ce22c9387f00]

Also known as: Monster, Navigator

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
44mm
Case Thickness
8.6mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
30m
Dial Color
Silver
Jewels
36j
Frequency
28,800 bph
Power Reserve
51 hours
Year
1978

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