Seiko Cal. 6388 - 654

The Seiko 6388-654 represents an important milestone in Seiko's 1980 lineup. With its 19mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-34ebf8aefae4]

Also known as: Monster, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1980

Related Models

• Seiko 6670-866
• Seiko 7086-947
• Seiko 6680-141
• Seiko 6236-225
• Seiko 7012-580
• Seiko 6680-561
• Seiko 6678-503
• Seiko 6252-274
• Seiko 0780-420
• Seiko 4497-699
• Seiko 6163-559
• Seiko 6666-620