Seiko Cal. 4427 - 392

The Seiko 4427-392 represents an important milestone in Seiko's 1970 lineup. It features a Burgundy dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-915ce55260d1]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Burgundy

Jewels

35j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1970

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