Seiko Cal. 7157 - 717

Seiko 7157-717

The 7157-717 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-5d5293e8b4d6]

Also known as: Bullhead, Sportsmatic

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
11.6mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
60m
Dial Color
Navy
Jewels
34j
Frequency
28,800 bph
Power Reserve
50 hours
Year
1996

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