Seiko Cal. 4560 - 777

The Seiko 4560-777 represents an important milestone in Seiko's 1981 lineup. Powered by the 4560 caliber with 35j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-1e2e2766b503]

Also known as: Sumo, World Timer

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1981

Related Models

• Seiko 7094-822
• Seiko 4461-838
• Seiko 7118-763
• Seiko 5250-932
• Seiko 7181-277
• Seiko 6243-624
• Seiko 3885-112
• Seiko 5249-958
• Seiko 3842-470
• Seiko 6392-485
• Seiko 7198-916
• Seiko 6671-272