Seiko Cal. 3855 - 378

The Seiko 3855-378 represents an important milestone in Seiko's 1966 lineup. It features a Cream dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-78f6ae9500fc]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Cream

Jewels

24j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1966

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