Seiko Cal. 4436 - 647

This Hand-Winding model from 1975 features a 35mm Gold-Plated case. It features a Green dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-36761d68ba4e]

Also known as: Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Green

Jewels

22j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1975

Related Models

• Seiko 6199-885
• Seiko 5658-124
• Seiko 5688-434
• Seiko 5238-387
• Seiko 6263-993
• Seiko 5680-933
• Seiko 6656-218
• Seiko 6639-665
• Seiko 4486-830
• Seiko 3863-452
• Seiko 5650-739
• Seiko 7046-109