Seiko Cal. 5680 - 420

Released in 1985, the Cal. 5680 with design code 420 was part of Seiko's domestic market collection. It features a Black dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-d953b70e0684]

Also known as: Samurai, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1985

Related Models

• Seiko 5628-316
• Seiko 0729-111
• Seiko 6628-514
• Seiko 5246-907
• Seiko 7023-974
• Seiko 7070-557
• Seiko 7019-176
• Seiko 5697-352
• Seiko 6383-907
• Seiko 6335-351
• Seiko 6684-588
• Seiko 5648-884