Seiko Cal. 4441 - 765

This Spring Drive model from 1986 features a 37mm Hardlex-Coated Steel case. With its 18mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-693643d94e89]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1986

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