Seiko Cal. 3887 - 487

The 3887-487 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3887 caliber with 28j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-ea7488440631]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Green

Jewels

28j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1984

Related Models

• Seiko 6681-866
• Seiko 0757-992
• Seiko 5695-640
• Seiko 7062-796
• Seiko 0769-413
• Seiko 4596-333
• Seiko 5615-683
• Seiko 3893-865
• Seiko 5685-196
• Seiko 7117-552
• Seiko 5651-789
• Seiko 6149-346