Seiko Cal. 5666 - 215

The Seiko 5666-215 represents an important milestone in Seiko's 1980 lineup. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-9cc47e0fcd20]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Champagne

Jewels

36j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1980

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