Seiko Cal. 6381 - 720

This Solar model from 1965 features a 45mm Hardlex-Coated Steel case. Powered by the 6381 caliber with 22j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-c81a7e9d530e]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

13.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

White

Jewels

22j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1965

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