Seiko Cal. 4416 - 837

This Spring Drive model from 1980 features a 40mm Two-Tone case. With its 18mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-8332af158a86]

Also known as: Tuna, Panda

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1980

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