Seiko Cal. 4433 - 977

This Hand-Winding model from 1970 features a 39mm Titanium case. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-84ee3be93279]

Also known as: Tuna, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

White

Jewels

32j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1970

Related Models

• Seiko 5250-955
• Seiko 4485-149
• Seiko 0734-104
• Seiko 5618-191
• Seiko 6642-979
• Seiko 5636-728
• Seiko 3853-974
• Seiko 3863-972
• Seiko 0778-157
• Seiko 6183-114
• Seiko 5278-165
• Seiko 6277-281