Seiko Cal. 3897 - 491

The Seiko 3897-491 represents an important milestone in Seiko's 1972 lineup. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-1206762b2bc7]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Champagne

Jewels

19j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1972

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