Seiko Cal. 3899 - 678

This Spring Drive model from 1977 features a 44mm Titanium case. Powered by the 3899 caliber with 29j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-736161170026]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1977

Related Models

• Seiko 3897-470
• Seiko 4412-712
• Seiko 4579-366
• Seiko 5244-707
• Seiko 4420-958
• Seiko 4594-412
• Seiko 4575-726
• Seiko 5249-207
• Seiko 6644-667
• Seiko 6178-695
• Seiko 6692-217
• Seiko 5674-620