Seiko Cal. 3878 - 351

The Seiko 3878-351 represents an important milestone in Seiko's 1989 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-f3a2971f5e6f]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1989

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