Seiko Cal. 3840 - 878

The 3840-878 is a sought-after Kinetic piece from Seiko's golden era. It features a White dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-20ba8cb1f198]

Also known as: Monster

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

34j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1979

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