Seiko Cal. 5643 - 854

This Spring Drive model from 1986 features a 39mm Titanium case. It features a Black dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-38fc40495a48]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1986

Related Models

• Seiko 5651-479
• Seiko 7153-718
• Seiko 5615-703
• Seiko 6272-296
• Seiko 6264-149
• Seiko 0776-535
• Seiko 6695-746
• Seiko 7074-887
• Seiko 4567-765
• Seiko 7030-938
• Seiko 4458-920
• Seiko 5232-427