Seiko Cal. 4536 - 285

This Quartz model from 1973 features a 39mm Titanium case. Powered by the 4536 caliber with 17j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-e225e165885b]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

39mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1973

Related Models

• Seiko 5649-150
• Seiko 6270-468
• Seiko 3837-818
• Seiko 3892-497
• Seiko 4491-205
• Seiko 6128-206
• Seiko 5246-112
• Seiko 7188-910
• Seiko 7033-377
• Seiko 5222-398
• Seiko 7132-806
• Seiko 6361-981