Seiko Cal. 6387 - 279

This Hand-Winding model from 1981 features a 38mm Two-Tone case. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-1768f1ae7b94]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1981

Related Models

• Seiko 4454-937
• Seiko 7024-509
• Seiko 0757-329
• Seiko 0797-933
• Seiko 4563-911
• Seiko 4471-538
• Seiko 7046-809
• Seiko 6618-521
• Seiko 6140-643
• Seiko 7072-100
• Seiko 6262-252
• Seiko 7086-914