Seiko Cal. 3818 - 140

The Seiko 3818-140 represents an important milestone in Seiko's 1966 lineup. It features a Silver dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-3a9bc2127830]

Also known as: Bellmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

37mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Silver

Jewels

33j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1966

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