Seiko Cal. 5646 - 925

The Seiko 5646-925 represents an important milestone in Seiko's 1967 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-d8685d2497a4]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

13.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1967

Related Models

• Seiko 3897-306
• Seiko 0766-542
• Seiko 5640-976
• Seiko 5260-832
• Seiko 7191-219
• Seiko 3874-719
• Seiko 6252-751
• Seiko 5239-362
• Seiko 4490-339
• Seiko 4474-669
• Seiko 7087-743
• Seiko 4424-992