Seiko Cal. 5645 - 539

The Seiko 5645-539 represents an important milestone in Seiko's 1984 lineup. Powered by the 5645 caliber with 31j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-56497c854d7c]

Also known as: Panda, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Silver

Jewels

31j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1984

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