Seiko Cal. 5645 - 900

The Seiko 5645-900 represents an important milestone in Seiko's 1982 lineup. With its 21mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-a78b0e7a5892]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Silver

Jewels

33j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1982

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