Seiko Cal. 5278 - 804

This Hand-Winding model from 1999 features a 37mm PVD Black case. It features a Silver dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-12963a20c372]

Also known as: Sumo, Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

20j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1999

Related Models

• Seiko 6235-238
• Seiko 3893-559
• Seiko 3894-912
• Seiko 3895-262
• Seiko 4472-592
• Seiko 7040-943
• Seiko 0776-526
• Seiko 4461-576
• Seiko 0768-185
• Seiko 0719-777
• Seiko 3833-145
• Seiko 5619-596