Seiko Cal. 3854 - 421

The Seiko 3854-421 represents an important milestone in Seiko's 1990 lineup. It features a Black dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-760372a846bb]

Also known as: Bellmatic, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1990

Related Models

• Seiko 6665-579
• Seiko 4532-748
• Seiko 6360-236
• Seiko 0795-473
• Seiko 7152-634
• Seiko 4541-258
• Seiko 6699-731
• Seiko 6293-352
• Seiko 5681-258
• Seiko 5619-575
• Seiko 0779-793
• Seiko 7140-172