Seiko Cal. 5645 - 100

The Seiko 5645-100 represents an important milestone in Seiko's 1980 lineup. It features a Champagne dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-73ec0758229a]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Champagne

Jewels

19j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1980

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