Seiko Cal. 3840 - 473

Released in 1986, the Cal. 3840 with design code 473 was part of Seiko's domestic market collection. With its 21mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-ce7fe9a25e5e]

Also known as: World Timer, Crown

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1986

Related Models

• Seiko 6288-100
• Seiko 6376-964
• Seiko 7199-305
• Seiko 6350-163
• Seiko 5244-627
• Seiko 7130-124
• Seiko 6244-230
• Seiko 4544-173
• Seiko 6163-166
• Seiko 4548-813
• Seiko 6317-318
• Seiko 3825-578