Seiko Cal. 6364 - 721

The Seiko 6364-721 represents an important milestone in Seiko's 1977 lineup. It features a Black dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-9bf57c15b5e4]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

8.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1977

Related Models

• Seiko 5674-336
• Seiko 6287-615
• Seiko 6338-976
• Seiko 7123-806
• Seiko 6168-237
• Seiko 0719-210
• Seiko 4450-575
• Seiko 5650-123
• Seiko 4489-920
• Seiko 6274-111
• Seiko 6112-508
• Seiko 4539-988