Seiko Cal. 6618 - 571

This Spring Drive model from 1971 features a 46mm Titanium case. With its 20mm lug width and 13.6mm profile, it sits comfortably on most wrists. [seikata-wm-041c1706057d]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Burgundy

Jewels

27j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1971

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