Seiko Cal. 4577 - 144

Seiko 4577-144

The Seiko 4577-144 represents an important milestone in Seiko's 1988 lineup. Powered by the 4577 caliber with 25j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-3cefff97e125]

Also known as: Tuna, Bullhead

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
42mm
Case Thickness
15.4mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
70m
Dial Color
Cream
Jewels
25j
Frequency
36,000 bph
Power Reserve
72 hours
Year
1988

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