Seiko Cal. 3842 - 636

The Seiko 3842-636 represents an important milestone in Seiko's 1989 lineup. With its 19mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-649da039b1ae]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1989

Related Models

• Seiko 6233-792
• Seiko 6247-774
• Seiko 7114-741
• Seiko 6399-887
• Seiko 7122-937
• Seiko 4597-827
• Seiko 6697-294
• Seiko 5687-879
• Seiko 4455-878
• Seiko 3838-509
• Seiko 7135-951
• Seiko 6683-717