Seiko Cal. 6617 - 978

This Hand-Winding model from 1978 features a 45mm Two-Tone case. With its 21mm lug width and 10.3mm profile, it sits comfortably on most wrists. [seikata-wm-21a87702173f]

Also known as: Monster, Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Navy

Jewels

35j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1978

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