Seiko Cal. 3816 - 207

This Hand-Winding model from 1999 features a 39mm Two-Tone case. Powered by the 3816 caliber with 36j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-88affdcc4a35]

Also known as: Sumo, Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1999

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