Seiko Cal. 6671 - 154

The Seiko 6671-154 represents an important milestone in Seiko's 1987 lineup. With its 18mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-498ac8f1b90e]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1987

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