Seiko Cal. 6377 - 392

This Spring Drive model from 1972 features a 42mm PVD Black case. Powered by the 6377 caliber with 24j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-7e664f510916]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Cream

Jewels

24j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1972

Related Models

• Seiko 4445-579
• Seiko 0716-700
• Seiko 0780-338
• Seiko 5648-329
• Seiko 7168-789
• Seiko 4414-589
• Seiko 6680-629
• Seiko 6198-939
• Seiko 7112-617
• Seiko 6670-182
• Seiko 6616-318
• Seiko 0798-404