Seiko Cal. 3877 - 554

This Spring Drive model from 1997 features a 37mm Stainless Steel case. With its 19mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-47de067cb3b1]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

32j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1997

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