Seiko Cal. 3879 - 961

The 3879-961 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3879 caliber with 18j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-63c4c7ece56a]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Burgundy

Jewels

18j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1974

Related Models

• Seiko 7147-331
• Seiko 5218-336
• Seiko 6356-454
• Seiko 3896-389
• Seiko 3871-888
• Seiko 4555-475
• Seiko 5230-574
• Seiko 6681-503
• Seiko 6680-979
• Seiko 5243-649
• Seiko 5696-833
• Seiko 6381-422