Seiko Cal. 3880 - 427

The Seiko 3880-427 represents an important milestone in Seiko's 1965 lineup. Powered by the 3880 caliber with 35j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-797216ec37ea]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1965

Related Models

• Seiko 6387-388
• Seiko 3882-154
• Seiko 7190-660
• Seiko 6383-555
• Seiko 0785-941
• Seiko 6638-873
• Seiko 4526-572
• Seiko 6158-850
• Seiko 5223-203
• Seiko 4430-504
• Seiko 4431-983
• Seiko 7111-768