Seiko Cal. 4457 - 203

This Automatic model from 1975 features a 38mm Gold-Plated case. Powered by the 4457 caliber with 35j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-d51ee499ae4a]

Also known as: Bullhead, World Timer

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1975

Related Models

• Seiko 7073-597
• Seiko 3879-602
• Seiko 6622-985
• Seiko 6628-263
• Seiko 6193-716
• Seiko 6184-735
• Seiko 6685-272
• Seiko 5277-902
• Seiko 5629-868
• Seiko 4568-101
• Seiko 6645-583
• Seiko 6383-390