Seiko Cal. 4540 - 446

The Seiko 4540-446 represents an important milestone in Seiko's 1971 lineup. Powered by the 4540 caliber with 34j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-0833457eccad]

Also known as: Samurai, Sumo

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1971

Related Models

• Seiko 4551-572
• Seiko 4447-150
• Seiko 6146-748
• Seiko 4573-211
• Seiko 0761-401
• Seiko 0756-217
• Seiko 4564-742
• Seiko 6152-672
• Seiko 6162-133
• Seiko 6689-307
• Seiko 4556-449
• Seiko 5657-385