Seiko Cal. 6651 - 721

This Hand-Winding model from 1981 features a 46mm PVD Black case. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-6b6fd3a52658]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1981

Related Models

• Seiko 6312-623
• Seiko 6662-652
• Seiko 6245-192
• Seiko 4468-905
• Seiko 6345-265
• Seiko 4512-413
• Seiko 7046-886
• Seiko 5658-236
• Seiko 7062-374
• Seiko 5655-576
• Seiko 4559-686
• Seiko 5688-496