Seiko Cal. 5642 - 623

The Seiko 5642-623 represents an important milestone in Seiko's 1976 lineup. It features a White dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-6d223ad46aec]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

White

Jewels

26j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1976

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