Seiko Cal. 4437 - 651

This Solar model from 1965 features a 35mm Stainless Steel case. With its 20mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-9a0caae9184c]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1965

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