Seiko Cal. 3817 - 150

The 3817-150 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-1bcab2745793]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

White

Jewels

34j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1994

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