Seiko Cal. 4431 - 836

The Seiko 4431-836 represents an important milestone in Seiko's 1999 lineup. It features a Burgundy dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-b63ac42ca536]

Also known as: Tuna, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Burgundy

Jewels

18j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1999

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