Seiko Cal. 4581 - 212

The Seiko 4581-212 represents an important milestone in Seiko's 1968 lineup. Powered by the 4581 caliber with 28j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-1a6bbad6a7e4]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

28j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1968

Related Models

• Seiko 3839-226
• Seiko 5259-530
• Seiko 4562-110
• Seiko 4455-936
• Seiko 0769-604
• Seiko 4467-534
• Seiko 6148-303
• Seiko 7098-319
• Seiko 7193-520
• Seiko 7014-490
• Seiko 0761-724
• Seiko 5645-654