Seiko Cal. 5645 - 990

The Seiko 5645-990 represents an important milestone in Seiko's 1985 lineup. Powered by the 5645 caliber with 24j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-2e8eef382305]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

70m

Dial Color

Burgundy

Jewels

24j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1985

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