Seiko Cal. 4415 - 770

The 4415-770 is a sought-after Hand-Winding piece from Seiko's golden era. With its 19mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-6e283872e682]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1973

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