Seiko Cal. 7177 - 278

Seiko 7177-278

The 7177-278 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7177 caliber with 17j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-afb19cc7133a]

Also known as: Helmet, Sportsmatic

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
39mm
Case Thickness
8.7mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
70m
Dial Color
Burgundy
Jewels
17j
Frequency
36,000 bph
Power Reserve
68 hours
Year
1975

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