Seiko Cal. 3813 - 805

This Spring Drive model from 1977 features a 37mm Two-Tone case. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-6743d599217f]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1977

Related Models

• Seiko 6328-202
• Seiko 6355-947
• Seiko 7182-166
• Seiko 4415-506
• Seiko 4540-296
• Seiko 0724-919
• Seiko 4435-638
• Seiko 4436-854
• Seiko 0781-353
• Seiko 0737-812
• Seiko 6199-974
• Seiko 6182-334