Seiko Cal. 3878 - 428

This Spring Drive model from 1999 features a 41mm Stainless Steel case. It features a Green dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-7afcc43a31ce]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

Green

Jewels

30j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1999

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