Seiko Cal. 3817 - 717

Released in 1974, the Cal. 3817 with design code 717 was part of Seiko's domestic market collection. With its 21mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-ea3df61aa370]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1974

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