Seiko Cal. 6321 - 451

The Seiko 6321-451 represents an important milestone in Seiko's 1969 lineup. It features a Black dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-7b9b3aa8b2d5]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

12.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1969

Related Models

• Seiko 4564-352
• Seiko 4443-393
• Seiko 6246-443
• Seiko 0729-167
• Seiko 5649-957
• Seiko 6393-542
• Seiko 6687-294
• Seiko 6636-993
• Seiko 0771-978
• Seiko 6332-759
• Seiko 6246-437
• Seiko 0762-916