Seiko Cal. 5617 - 680

The 5617-680 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Silver dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-83e8f762c224]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

8.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

120m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1974

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