Seiko Cal. 3891 - 427

The Seiko 3891-427 represents an important milestone in Seiko's 1980 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-fd268165a3b8]

Also known as: Helmet, Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1980

Related Models

• Seiko 6355-403
• Seiko 6394-759
• Seiko 6121-327
• Seiko 4465-952
• Seiko 3833-671
• Seiko 7123-957
• Seiko 4592-326
• Seiko 6232-559
• Seiko 6117-112
• Seiko 7152-294
• Seiko 0710-894
• Seiko 3853-190