Seiko Cal. 6388 - 220

The Seiko 6388-220 represents an important milestone in Seiko's 1975 lineup. Powered by the 6388 caliber with 18j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-4dc9cfc083b2]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1975

Related Models

• Seiko 6120-101
• Seiko 0751-341
• Seiko 4576-212
• Seiko 6118-191
• Seiko 4476-455
• Seiko 5278-578
• Seiko 6162-617
• Seiko 3851-394
• Seiko 6610-424
• Seiko 6373-149
• Seiko 0771-145
• Seiko 7176-615