Seiko Cal. 6399 - 107

The 6399-107 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6399 caliber with 28j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-658c89f61e79]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Burgundy

Jewels

28j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1991

Related Models

• Seiko 6147-709
• Seiko 3892-212
• Seiko 4569-577
• Seiko 0774-558
• Seiko 6358-805
• Seiko 3814-764
• Seiko 3888-834
• Seiko 4420-520
• Seiko 4414-835
• Seiko 6359-502
• Seiko 3866-729
• Seiko 7034-133