Seiko Cal. 6611 - 917

The 6611-917 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-be1aaabeb050]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1965

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