Seiko Cal. 6388 - 886

Released in 1971, the Cal. 6388 with design code 886 was part of Seiko's domestic market collection. Powered by the 6388 caliber with 25j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-9533ed23ed94]

Also known as: World Timer, Flighty

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

White

Jewels

25j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1971

Related Models

• Seiko 6146-784
• Seiko 5624-938
• Seiko 6628-977
• Seiko 7145-601
• Seiko 0744-322
• Seiko 7070-848
• Seiko 0779-605
• Seiko 6326-381
• Seiko 6244-979
• Seiko 6347-734
• Seiko 0781-436
• Seiko 6127-273