Seiko Cal. 4577 - 156

This Hand-Winding model from 1991 features a 39mm Titanium case. With its 20mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-a6fdacadebb5]

Also known as: Pogue, Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1991

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