Seiko Cal. 5617 - 711

Seiko 5617-711

The 5617-711 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-4341b2a44fa7]

Also known as: Helmet

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
40mm
Case Thickness
11.3mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
Navy
Jewels
29j
Frequency
28,800 bph
Power Reserve
41 hours
Year
1965

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