Seiko Cal. 3857 - 857

Released in 1975, the Cal. 3857 with design code 857 was part of Seiko's domestic market collection. Powered by the 3857 caliber with 23j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-efceb63ec2f9]

Also known as: Bellmatic, Emperor

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

23j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1975

Related Models

• Seiko 7189-595
• Seiko 6160-946
• Seiko 6228-399
• Seiko 7140-495
• Seiko 3866-857
• Seiko 6278-278
• Seiko 7095-451
• Seiko 6174-230
• Seiko 6220-402
• Seiko 4528-527
• Seiko 5649-318
• Seiko 6159-361