Seiko Cal. 3813 - 937

The Seiko 3813-937 represents an important milestone in Seiko's 1998 lineup. With its 20mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-bab1dc61b7ec]

Also known as: Bullhead, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1998

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