Seiko Cal. 6399 - 231

The Seiko 6399-231 represents an important milestone in Seiko's 1968 lineup. With its 19mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-4560f7ea0531]

Also known as: Crown, Flighty

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

32j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1968

Related Models

• Seiko 3836-466
• Seiko 7064-378
• Seiko 4493-676
• Seiko 4598-568
• Seiko 3818-143
• Seiko 0788-294
• Seiko 7146-560
• Seiko 4598-896
• Seiko 5268-741
• Seiko 6668-540
• Seiko 6141-344
• Seiko 6355-251