Seiko Cal. 3878 - 783

The Seiko 3878-783 represents an important milestone in Seiko's 1972 lineup. The Fixed bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-ae4fe068015e]

Also known as: Monster

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

42mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1972

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