Seiko Cal. 3840 - 154

Released in 1977, the Cal. 3840 with design code 154 was part of Seiko's domestic market collection. It features a Silver dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-a9ae49926add]

Also known as: Monster

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1977

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