Seiko Cal. 5644 - 387

This Automatic model from 1994 features a 37mm Stainless Steel case. Powered by the 5644 caliber with 23j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-0bd98593fc81]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1994

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