Seiko Cal. 6377 - 428

This Hand-Winding model from 1987 features a 38mm Titanium case. With its 22mm lug width and 11.1mm profile, it sits comfortably on most wrists. [seikata-wm-c16c23ed2380]

Also known as: Samurai, Sumo

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

24j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1987

Related Models

• Seiko 3885-360
• Seiko 3899-109
• Seiko 6328-624
• Seiko 6638-152
• Seiko 0753-665
• Seiko 3853-278
• Seiko 7148-341
• Seiko 7020-659
• Seiko 4490-397
• Seiko 0763-620
• Seiko 6648-716
• Seiko 4594-436