Seiko Cal. 3851 - 139

The Seiko 3851-139 represents an important milestone in Seiko's 1991 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-3913efbe5eec]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1991

Related Models

• Seiko 5663-952
• Seiko 7151-920
• Seiko 0758-612
• Seiko 7114-443
• Seiko 3813-607
• Seiko 7115-551
• Seiko 4470-149
• Seiko 6396-145
• Seiko 6126-151
• Seiko 0751-292
• Seiko 4530-398
• Seiko 6646-798