Seiko Cal. 3897 - 820

This Spring Drive model from 1992 features a 46mm Two-Tone case. It features a Navy dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-5cf71a18a0a3]

Also known as: Tuna, Rally

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1992

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