Seiko Cal. 4540 - 983

The Seiko 4540-983 represents an important milestone in Seiko's 1987 lineup. Powered by the 4540 caliber with 21j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-c7f6786fe23b]

Also known as: Shogun, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1987

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