Seiko Cal. 6377 - 797

The 6377-797 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-3c7454cafe9f]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1991

Related Models

• Seiko 6148-212
• Seiko 6152-528
• Seiko 5678-743
• Seiko 6282-598
• Seiko 6212-718
• Seiko 4590-216
• Seiko 7094-602
• Seiko 5643-866
• Seiko 5672-555
• Seiko 6638-668
• Seiko 7163-993
• Seiko 0716-584