Seiko Cal. 6381 - 604

This Solar model from 1973 features a 43mm Stainless Steel case. Powered by the 6381 caliber with 17j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-16c8e2c219ec]

Also known as: Tuna, UFO

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

17j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1973

Related Models

• Seiko 7191-714
• Seiko 7037-168
• Seiko 7027-466
• Seiko 7190-473
• Seiko 4510-507
• Seiko 6656-993
• Seiko 0756-506
• Seiko 4584-844
• Seiko 4481-322
• Seiko 6341-122
• Seiko 6398-397
• Seiko 4561-880