Seiko Cal. 4457 - 381

The Seiko 4457-381 represents an important milestone in Seiko's 1977 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-98e3c4c5bdfc]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1977

Related Models

• Seiko 4439-620
• Seiko 6346-204
• Seiko 3836-308
• Seiko 4591-294
• Seiko 4434-804
• Seiko 4534-371
• Seiko 6248-509
• Seiko 4585-982
• Seiko 7135-708
• Seiko 5617-193
• Seiko 6112-270
• Seiko 6285-400