Seiko Cal. 6387 - 828

The Seiko 6387-828 represents an important milestone in Seiko's 1971 lineup. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-7b35a9dfd7df]

Also known as: Sumo, Sea Horse

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Burgundy

Jewels

19j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1971

Related Models

• Seiko 5264-383
• Seiko 5628-439
• Seiko 7080-576
• Seiko 6396-452
• Seiko 4492-648
• Seiko 4438-249
• Seiko 0754-286
• Seiko 3823-523
• Seiko 6685-250
• Seiko 0786-808
• Seiko 5248-176
• Seiko 7161-334