Seiko Cal. 3840 - 636

The Seiko 3840-636 represents an important milestone in Seiko's 1995 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-3a3184e71f79]

Also known as: Bellmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

43mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1995

Related Models

• Seiko 6262-649
• Seiko 3852-875
• Seiko 4490-394
• Seiko 5219-479
• Seiko 6230-673
• Seiko 6619-773
• Seiko 6197-695
• Seiko 7085-501
• Seiko 6272-438
• Seiko 6116-129
• Seiko 4495-751
• Seiko 3828-888