Seiko Cal. 6671 - 521

This Spring Drive model from 1994 features a 36mm PVD Black case. With its 18mm lug width and 11.1mm profile, it sits comfortably on most wrists. [seikata-wm-297dc7e74f8f]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

30m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1994

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