Seiko Cal. 5641 - 850

This Quartz model from 1985 features a 38mm Gold-Plated case. Powered by the 5641 caliber with 31j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-3f9dd82e5842]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1985

Related Models

• Seiko 7080-651
• Seiko 5281-519
• Seiko 7033-390
• Seiko 4514-301
• Seiko 3827-967
• Seiko 6649-951
• Seiko 5626-782
• Seiko 7097-517
• Seiko 7072-369
• Seiko 6662-964
• Seiko 3816-370
• Seiko 6657-332