Seiko Cal. 3812 - 636

This Solar model from 1965 features a 40mm Hardlex-Coated Steel case. Powered by the 3812 caliber with 18j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-bbbe964ce20f]

Also known as: Flighty

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1965

Related Models

• Seiko 6120-778
• Seiko 6236-740
• Seiko 5634-418
• Seiko 4421-578
• Seiko 5645-295
• Seiko 6632-203
• Seiko 4557-265
• Seiko 4414-121
• Seiko 6167-993
• Seiko 4490-340
• Seiko 3833-437
• Seiko 6272-229