Seiko Cal. 6166 - 886

Released in 1967, the Cal. 6166 with design code 886 was part of Seiko's domestic market collection. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-ff2fa805b9d2]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1967

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