Seiko Cal. 4444 - 536

The 4444-536 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4444 caliber with 36j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-4b7c25741758]

Also known as: Sumo, Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Cream

Jewels

36j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1976

Related Models

• Seiko 5626-167
• Seiko 4542-447
• Seiko 3855-325
• Seiko 4597-607
• Seiko 4568-296
• Seiko 6613-318
• Seiko 7082-371
• Seiko 7120-495
• Seiko 5647-639
• Seiko 5640-208
• Seiko 5623-873
• Seiko 6636-574