Seiko Cal. 3897 - 840

The Seiko 3897-840 represents an important milestone in Seiko's 1997 lineup. It features a Burgundy dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-0959f6b7bd63]

Also known as: Monster, Navigator

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

35j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1997

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