Seiko Cal. 3878 - 843

Released in 1968, the Cal. 3878 with design code 843 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-dea458ef4468]

Also known as: Monster, Bullhead

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1968

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