Seiko Cal. 3816 - 961

The Seiko 3816-961 represents an important milestone in Seiko's 1978 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-e2b03a9c3105]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1978

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