Seiko Cal. 6617 - 356

The 6617-356 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Burgundy dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-a980759ff31d]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

25j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1970

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