Seiko Cal. 4490 - 820

The Seiko 4490-820 represents an important milestone in Seiko's 1985 lineup. It features a White dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-decc94458bbf]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

White

Jewels

31j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1985

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