Seiko Cal. 6381 - 668

The 6381-668 is a sought-after Solar piece from Seiko's golden era. Powered by the 6381 caliber with 34j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-ef9fc32d2d5b]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Titanium

Case Width

38mm

Case Thickness

14.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Cream

Jewels

34j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1967

Related Models

• Seiko 0711-721
• Seiko 7044-251
• Seiko 6120-301
• Seiko 7186-648
• Seiko 6213-194
• Seiko 5628-681
• Seiko 5251-237
• Seiko 5653-578
• Seiko 6683-776
• Seiko 4597-211
• Seiko 6698-562
• Seiko 6372-699