Seiko Cal. 5639 - 856

The Seiko 5639-856 represents an important milestone in Seiko's 1998 lineup. Powered by the 5639 caliber with 35j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-9f9fd447f9bf]

Also known as: Crown, Golden Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1998

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