Seiko Cal. 4451 - 546

This Automatic model from 1978 features a 36mm Hardlex-Coated Steel case. Powered by the 4451 caliber with 35j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-63695df05e5d]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1978

Related Models

• Seiko 4511-558
• Seiko 6332-763
• Seiko 6235-300
• Seiko 6115-307
• Seiko 0763-543
• Seiko 6355-728
• Seiko 6143-719
• Seiko 7116-856
• Seiko 4459-638
• Seiko 6683-459
• Seiko 6110-518
• Seiko 3849-453