Seiko Cal. 3837 - 855

This Hand-Winding model from 1970 features a 35mm Two-Tone case. Powered by the 3837 caliber with 35j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-dd730af313f3]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Burgundy

Jewels

35j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1970

Related Models

• Seiko 6372-457
• Seiko 5665-562
• Seiko 7169-920
• Seiko 7052-637
• Seiko 5667-241
• Seiko 7095-910
• Seiko 3865-680
• Seiko 7050-363
• Seiko 3878-138
• Seiko 6141-174
• Seiko 3834-559
• Seiko 6332-118