Seiko Cal. 6381 - 109

This Automatic model from 1974 features a 36mm Hardlex-Coated Steel case. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-2dbfe06cf649]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

13.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Silver

Jewels

35j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1974

Related Models

• Seiko 5622-994
• Seiko 6179-771
• Seiko 5693-515
• Seiko 5696-874
• Seiko 7076-460
• Seiko 6176-416
• Seiko 4532-332
• Seiko 7046-371
• Seiko 0758-379
• Seiko 6631-857
• Seiko 4424-912
• Seiko 3849-392