Seiko Cal. 3815 - 379

Released in 1965, the Cal. 3815 with design code 379 was part of Seiko's domestic market collection. With its 18mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-be2da48aee92]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Silver

Jewels

20j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1965

Related Models

• Seiko 4561-852
• Seiko 4474-615
• Seiko 5225-251
• Seiko 7066-984
• Seiko 6330-170
• Seiko 4468-301
• Seiko 7046-931
• Seiko 7049-109
• Seiko 4541-691
• Seiko 6253-158
• Seiko 5297-713
• Seiko 6147-524