Seiko Cal. 3897 - 621

This Spring Drive model from 1998 features a 41mm Two-Tone case. It features a Black dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-329a9bc954af]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Black

Jewels

17j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1998

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