Seiko Cal. 3881 - 691

The 3881-691 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3881 caliber with 27j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-c877e25debbb]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1983

Related Models

• Seiko 0779-930
• Seiko 6638-204
• Seiko 6278-297
• Seiko 0744-361
• Seiko 7187-698
• Seiko 6174-331
• Seiko 7197-215
• Seiko 6149-757
• Seiko 5281-787
• Seiko 4418-270
• Seiko 6186-196
• Seiko 6281-750