Seiko Cal. 6187 - 789

This Automatic model from 1977 features a 44mm PVD Black case. Powered by the 6187 caliber with 28j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-dfd56230dbd4]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

28j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1977

Related Models

• Seiko 6674-358
• Seiko 4532-369
• Seiko 5256-560
• Seiko 6358-749
• Seiko 7071-868
• Seiko 3863-202
• Seiko 7139-479
• Seiko 4444-211
• Seiko 3839-323
• Seiko 6614-582
• Seiko 7119-931
• Seiko 7132-640