Seiko Cal. 4538 - 727

This Solar model from 1970 features a 35mm Hardlex-Coated Steel case. Powered by the 4538 caliber with 22j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-2fd616f6afe3]

Also known as: Panda, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Black

Jewels

22j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1970

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