Seiko Cal. 3831 - 665

The Seiko 3831-665 represents an important milestone in Seiko's 1998 lineup. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-76b0e8632e6c]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1998

Related Models

• Seiko 0711-801
• Seiko 5223-687
• Seiko 6246-931
• Seiko 4443-715
• Seiko 6133-813
• Seiko 5617-327
• Seiko 3841-507
• Seiko 7094-431
• Seiko 6671-433
• Seiko 6359-103
• Seiko 5242-330
• Seiko 0778-347