Seiko Cal. 3872 - 490

This Spring Drive model from 1988 features a 40mm Hardlex-Coated Steel case. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-2986f41f7fde]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1988

Related Models

• Seiko 3827-698
• Seiko 6630-248
• Seiko 6312-561
• Seiko 7015-689
• Seiko 3852-796
• Seiko 6667-382
• Seiko 7024-882
• Seiko 6697-441
• Seiko 3826-239
• Seiko 0782-889
• Seiko 5281-824
• Seiko 6355-511