Seiko Cal. 3878 - 739

The Seiko 3878-739 represents an important milestone in Seiko's 1990 lineup. Powered by the 3878 caliber with 28j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-64120a588a23]

Also known as: Bellmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1990

Related Models

• Seiko 7128-229
• Seiko 4530-918
• Seiko 0733-782
• Seiko 4598-507
• Seiko 6353-839
• Seiko 5217-760
• Seiko 3877-746
• Seiko 7138-545
• Seiko 6281-347
• Seiko 4516-105
• Seiko 6256-419
• Seiko 7170-278