Seiko Cal. 5611 - 171

Released in 1971, the Cal. 5611 with design code 171 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-49c7cb9cc19e]

Also known as: UFO

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1971

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