Seiko Cal. 3854 - 486

The Seiko 3854-486 represents an important milestone in Seiko's 1978 lineup. Powered by the 3854 caliber with 25j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-78a95df96b1d]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Burgundy

Jewels

25j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1978

Related Models

• Seiko 6351-151
• Seiko 7160-449
• Seiko 0780-364
• Seiko 0776-751
• Seiko 6641-870
• Seiko 7130-523
• Seiko 0771-409
• Seiko 6156-504
• Seiko 4497-367
• Seiko 6398-418
• Seiko 7181-893
• Seiko 6366-695