Seiko Cal. 5660 - 511

Released in 1982, the Cal. 5660 with design code 511 was part of Seiko's domestic market collection. It features a Burgundy dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-9e197be6fcdd]

Also known as: Tuna, UFO

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

25j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1982

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