Seiko Cal. 4428 - 792

This Hand-Winding model from 1978 features a 44mm Hardlex-Coated Steel case. It features a Silver dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-09fab19b044a]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Silver

Jewels

24j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1978

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