Seiko Cal. 5645 - 948

The Seiko 5645-948 represents an important milestone in Seiko's 1965 lineup. It features a Green dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-7b8fd0e06c44]

Also known as: Helmet, Bellmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

34mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Green

Jewels

30j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1965

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