Seiko Cal. 4439 - 777

The Seiko 4439-777 represents an important milestone in Seiko's 1985 lineup. It features a Navy dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-2631a46f72a2]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

44mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1985

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