Seiko Cal. 3878 - 748

The Seiko 3878-748 represents an important milestone in Seiko's 1984 lineup. It features a Navy dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-e3a62d939227]

Also known as: Monster, Arnie

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1984

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