Seiko Cal. 3854 - 643

The Seiko 3854-643 represents an important milestone in Seiko's 1978 lineup. It features a Burgundy dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-c2615472ee7f]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Burgundy

Jewels

35j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1978

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