Seiko Cal. 4427 - 690

The 4427-690 is a sought-after Quartz piece from Seiko's golden era. It features a Black dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-f275596b0d07]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

42mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1975

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