Seiko Cal. 6389 - 785

The Seiko 6389-785 represents an important milestone in Seiko's 1986 lineup. Powered by the 6389 caliber with 19j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-2f5ece8cda7c]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Silver

Jewels

19j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1986

Related Models

• Seiko 6234-322
• Seiko 6677-692
• Seiko 5664-357
• Seiko 6219-335
• Seiko 6210-805
• Seiko 4582-495
• Seiko 6353-415
• Seiko 6614-275
• Seiko 3839-942
• Seiko 6625-558
• Seiko 6622-143
• Seiko 4420-125