Seiko Cal. 3890 - 975

This Spring Drive model from 1968 features a 42mm Gold-Plated case. Powered by the 3890 caliber with 26j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-3e8fdd085c93]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

26j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1968

Related Models

• Seiko 0755-197
• Seiko 5262-741
• Seiko 6295-602
• Seiko 4423-611
• Seiko 5277-483
• Seiko 7159-846
• Seiko 5231-155
• Seiko 6181-237
• Seiko 6382-648
• Seiko 0762-621
• Seiko 5292-792
• Seiko 7014-751