Seiko Cal. 6321 - 678

The 6321-678 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6321 caliber with 31j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-ea23c8cf76cb]

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

38mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1999

Related Models

• Seiko 3815-770
• Seiko 7116-788
• Seiko 6623-256
• Seiko 5631-270
• Seiko 5657-547
• Seiko 5259-470
• Seiko 7076-151
• Seiko 0740-529
• Seiko 6380-917
• Seiko 4479-418
• Seiko 7072-210
• Seiko 6169-659