Seiko Cal. 4577 - 627

The Seiko 4577-627 represents an important milestone in Seiko's 1975 lineup. It features a White dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-79d7e040b3ed]

Also known as: UFO, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

White

Jewels

36j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1975

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