Seiko Cal. 3831 - 745

The Seiko 3831-745 represents an important milestone in Seiko's 1965 lineup. It features a Cream dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-c8cd3a4f34da]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Cream

Jewels

17j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1965

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