Seiko Cal. 6641 - 238

The Seiko 6641-238 represents an important milestone in Seiko's 1967 lineup. It features a Navy dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-4d88eaed3beb]

Also known as: Shogun, World Timer

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

36mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Navy

Jewels

17j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1967

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