Seiko Cal. 4447 - 637

The 4447-637 is a sought-after Kinetic piece from Seiko's golden era. It features a White dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-80b7c982642e]

Also known as: Turtle

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

42mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

White

Jewels

30j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1977

Related Models

• Seiko 5271-405
• Seiko 6171-795
• Seiko 6136-953
• Seiko 7147-172
• Seiko 7076-451
• Seiko 6167-976
• Seiko 3865-565
• Seiko 6381-825
• Seiko 4454-341
• Seiko 7063-634
• Seiko 4446-473
• Seiko 6281-197